Acme Mathematics-3 51We have, 1 cm = 10 mm or 10 mm = 1 cm100 centimeters = 1 meter or, 100 cm = 1 mB. Conversion of measurementWe already know :1 m = 100 cm(a) To convert 'meters' into 'centimeters' we multiply the number of meters by 1001 m = 100 cm3 m = 3 × 100 cm = 300 cm5 m = 5 × 100 cm = 500 cm(b) To convert 'centimeters' into 'millimeters' we multiply the number of centimeter by 10.1 cm = 10 mm2 cm = 2 × 10 mm = 20 mm4 cm = 4 × 10 mm = 40 mm(c) To convert 'centimeters' into 'meters' first transform the given number of centimeters into a multiple of 100. This will give the number of meters in the given number of centimeters.400 cm = 4 × 100 cm= 4 m1200 cm = 12 × 100 cm= 12 m My room is4 meter long.
52 Acme Mathematics-3ClassworkWrite in meters:100 cm = 1 m200 cm = m300 cm = 400 cm = 800 cm = 1000 cm = 1200 cm = 1500 cm = 2000 cm = Write in centimeters:5 m = 500 cm7 m = cm9 m = 10 m = 8 m = 6 m = 3 m = 4 m = 2 m = 1.Exercise 2.51. Change the following meter into centimeters:(a) 3 m (b) 25 m (c) 67 m(d) 5 m (e) 71 m (f) 21 m2. Change the following centimeters into meters :(a) 800 cm (b) 1500 cm (c) 300 cm(d) 1600 cm (e) 700 cm (f) 900 cm
Acme Mathematics-3 533. Change the following meter into millimeters:(a) 5 m (b) 8 m (c) 7 m(d) 2 m (e) 6 m (f) 9 m4. Change the following millimeters into centimeters:(a) 400 mm (b) 700 mm (c) 500 mm(d) 900 mm (e) 600 mm (f) 100 mm5. Fill in the blanks.(a) 300 cm = ............. m(b) 400 cm = ............. m(c) 5 cm = ............. mm(d) 6 m = ............. cm(e) 200 cm = ............. m(f) 3 m 15 cm = ............. cm + ........ cm = ........ cm(g) 4 m 50 cm = ............. cm + ........ cm = ........ cm(h) 7 m 70 cm = ............. cm + ........ cm = ........ cm(i) 1 m 90 cm = ............. cm + ........ cm = ........ cm(j) 2 m 80 cm = ............. cm + ........ cm = ........ cm(k) 5 m 60 cm = ............. cm + ........ cm = ........ cm
54 Acme Mathematics-3Project Work1. Objective: To know the use of measurement.2. Materials required: A-4 size paper Sticker / Pictures of the objects. Glue Scissors3. Activity: Collect the pictures of 10 objects which you use. Discuss with your friend and guess the length.4. An example is given below:7 cm
Acme Mathematics-3 555. Result: Road-A is ................. m long. Road-B is ................. m long. Riya's house is ................. m far from my house. Bridge is ................. m long. School is ................. m far from my house.Project Work1. Objective : To find the distance between the objects.2. Materials required : Scale A-4 size paper3. Activity Draw a map of your own road on A-4 size paper. Use the scale and write the distance in meter instead of centimeter.4. An example is given below: BridgeRoad - BRoad - AMy houseRoad - DRoad - CFriends houseRiya's house
56 Acme Mathematics-31. Fill in the blanks.(a) 2345, 2355, 2365, .................(b) 2081, 1981, 1881, .................2. Write in fraction.(a) One-half = ....................(b) Two-third = ....................3. Match the following.100 cm 1 cm2 meter 30 mm10 mm 1 meter3 cm 200 cm4. Tick the correct answer.(a) 1345, 2057 and 2181 are in increasing order.(b) 2203, 2404 and 2500 are in decreasing order.(c) One-fourth is written as 13.(d) Three-fourth is written as 34.5. Complete the number line.1000 2000 3000 4000Mixed Exercise
Acme Mathematics-3 576. Colour the given fractions.12 14 7. Measure the length of given object. It is .......... cm long.8. Estimate the following: (a) Distance between your home and your school. It is about .......... meter.(b) Length of your bedroom. It is about .......... meter.9. Using the given numbers 9, 1, 7, and 5, make 4 digit numbers and write them in increasing and decreasing order.10. Draw a circle and colour the fraction 34.11. Change into centimeter.(a) 3 meter (b) 4 meter 30 cm.12. Change into meter.(a) 400 cm (b) 350 cm
58 Acme Mathematics-3MY CREATION THEME3 Weightage : 163.1 line Segment - Scale - Measuring the line segment -Naming the line segment - Drawing the line segment - Measuring the line segment 3.2 Angle - Parts of an angle - Naming an angle - Constructing an angle - Right angle -Comparing the angle 3.3 Triangle 3.4 Quadrilateral
Acme Mathematics-3 591. Colour the picture according to given colour code and fill in the blanks.Colour Code(a) There are ............... squares?(b) There are ...............circles?(c) There are ............... triangles?(d) There are ............... rectangles?(e) There are ............... quadrilaterals?Activity
60 Acme Mathematics-3ClassworkMatch the following:circlequadrilateralanglescaleline segmentpencil0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15triangle
Acme Mathematics-3 61In our geometry box there are : a compass, two dividers, a set square, a pencil, a protractor, an eraser and a scale.We use scale (or ruler) to draw the line segment and to measure the length in centimeters.A. ScaleLook at the figure given alongside: It is a scale. It has two sides. Centimeter is written at one edge of the scale. Inch is written at the other edge of the scale. Centimeter and inches are the units of measurements.Now, take out your scale. How long is your scale?The scale given alongside is a centimeter scale. The short form of centimeter is cm. Given scale is 15 cm long. How long is your scale?B. Measuring the Line SegmentHow long is the line segment? 0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15In the above figure one end of the line segment is at the starting of centimeter scale 0 and the other end is at 7. Hence, the line segment is 7 cm long.How long is your pencil?0 cm0 inch 1 2 3 4 5 61 2 3 4 5 6 7 8 9 10 11 12 13 14 15Line Segment 3.1
62 Acme Mathematics-3C. Naming a Line SegmentLook at the given line segment. Starting point of the line segment is A. Ending point of the line segment is B.The name of the line segment is AB.Similarly,PQ is the name of the line segment given alongside. P ––––––––– QWe use capital letters of the English alphabet to name the line segment.D. Drawing the Line SegmentDraw a 6.5 cm long line segment.0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15Step I Place and press the scale on the paper. Mark two points against the marks 0 as point A and 6.5 as point B of the scale.Step II Keeping the scale fixed, draw a line from A to B along the edge of the scale.A B 6.5 cmNow, 6.5 cm long line segment AB is drawn.E. Measuring the Line SegmentCentimeters and inches are marked along the two edges of the scale. The 0 mark on the scale is the starting point. Let's learn to measure a line segment. Now we use a scale to measure the line segment.A BHow will you draw a line segment of 6.5 cm?
Acme Mathematics-3 63Let's measure the length of a line segment AB.0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15A BStep I Place the edge of the scale showing centimeters along the line segment AB.Step II Adjust your scale in such a way that the 0 mark of the scale is at the point A.Step III Read the scale at the point B.Here the mark on the scale is at 6 cm.So, we say, the line segment AB is 6 cm long.Classwork1. Write the length of each object given below in centimeter:(a)0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ....... cm(b)0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15....... cm(c)0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ....... cm(d)0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ....... cm
64 Acme Mathematics-32. Write the name of each line segment:(a) A ––––––––––––––– B It is line segment ............... (b) E ––––––––––––––– F It is line segment ...............(c) P ––––––––––––––– Q It is line segment ...............(d) C ––––––––––––––– D It is line segment ...............Exercise 3.11. Write the name of each line segment from the figures:(a) BO AThe line segments are .........., ........ and ..........(b)EGFThe line segments are .........., ........ and ..........(c) RP QThe line segments are .........., ........ and ..........2. Name the line segments:(a) ........, ........... and ......... are the line segments.(b) ........, ............ and .......... are the line segments.(c) ........... and ............ are line segments.3. Measure the line segments:(a) .......... cm(b) .......... cmAB
Acme Mathematics-3 65(c) .......... cm(d) .......... cm4. Join the points using scale and make the line segments:(a) P S line segment ..................(b) R T line segment ..................(c) A B line segment ..................(d) X Y line segment ..................5. Find the length of the following line segments with the help of a scale:(a)LMLM = ......... cm(b)RS = ......... cmR S(c)YXXY = ......... cm(d)CDCD = ......... cm6. Draw the line segments of the given length:(a) AB = 5 cm (b) CD = 9 cm (c) XY = 8.5 cm(d) EF = 6 cm (e) GH = 7.5 cm (f) RS = 4 cm7. Measure each side of the following figure:(a) AB = .............................. cm(b) BC = .............................. cm(c) CD = .............................. cm(d) AD = .............................. cm A BD C
66 Acme Mathematics-3ActivityStudy the given figures. Mark where angle is made and colour the marked angle.Many objects around us gives an idea of an angle.Look at the following objects and learn:3.2 Angle
Acme Mathematics-3 67 How many hands do each object has? Are hands of an object meet at the same point? How far are the hands of the objects?When two hands meet at a point the angle is formed. In the above figures, the angles are coloured.A. Parts of an Angle How many line segments are there in each figure? Where do the line segments join?In the figure, an angle is formed with two line segments.The angle is shaded.Hence, two line segments with a common end point form an angle.The two line segments are called the arms of the angle.Hence, » Angle has two arms.» Angle has a vertex (Common end point).B. Naming an AngleAn angle can be named as angle AOB or angle BOA. The symbol '∠' is used to denote an angle.Hence, an angle given along side is ∠AOB or ∠BOA.AngleAngleVertex armOAB
68 Acme Mathematics-3 We use capital letters of the English alphabet to name an angle. The letter denoting the vertex of an angle is always written in the middle.C. Constructing an angle Draw a line segment using scale. Name the line segment OA. Draw the another line segment OB. Mark the angle. The ∠BOA is ready.D. Right angleStudy the given figure and make an idea about right angle.The marked angles made by the figures above are called right angles.O BAO AB
Acme Mathematics-3 69E. Comparing the angleWe can compare the size of two angles.Now, compare the size of two angles ∠BOA and ∠XYZ.∠BOA is smaller than ∠ XYZ.Classwork1. Colour in the figures where angle is formed:(a)NarayanghatRampur(b) (c) (d)(e) (f) (g)2. Name each of the following angles in two ways:(a) (b) (c)(d) (e) (f)O ABY ZXXIIVIIIIIVVVII VIII IXXIIXIIB ACLM N ZY XOABS UT N RPChaubiskothi
70 Acme Mathematics-3Exercise 3.21. Name the vertex and the arms of each of the angles given below:(a) DF EE is the vertex.ED and EF are arms.(b)R SP (c)YXZ(d) M PO(e)M NL (f) Q PR2. Draw the following angles:(a) ∠AOB (b) ∠XYZ (c) ∠BCD(d) ∠BOC (e) ∠PDF (f) ∠RAM3. Compare the angles and name the smaller angle:(a)AO B YXZ(b)MDF R QP(c)FC O ACB(d)BO D XAC(e) NX P XDN(f)Y ZXM N O
Acme Mathematics-3 714. How many angles are formed in each of the figures given below?(a) CBO A(b) A DC B(c)EB DO(d)PQR (e) A DB C(f)5. Copy the following angles in your note book:(a)A BC (b)Y ZX (c)P RQ(d)TUS(e) AOD (f)A TC6. Name the right angle.(a) (b)(c) (d)AO B YXZ MDF R QPNX P XDNA DB C
72 Acme Mathematics-3Collect triangular shaped objects or the pictures around you and paste them. An example is given below.Clothes hangerActivity3.3 Triangle
Acme Mathematics-3 73 How many pencils are joined together? How many pens are joined together? How are they joined? Guess the name of the figure?The figure given alongside is called a triangle. How many line segments are there in the figure? How many angles are formed?A triangle is a closed figure made by three line segments.The following figures are triangles.A. Naming the triangleThe triangle can be named as triangle XYZ, triangle YZX or triangle ZXY.We use capital letters of English alphabet to name the triangle. The symbol '∆' is used to denote the triangle. For example ∆ XYZ.B. Component of the triangleLook at the given triangle ABC. How many line segments are there in the triangle ABC? Can you name the line segment which are in the triangle ABC? How many angles are there in the triangle ABC?Can you name the angles?Y ZXAB C
74 Acme Mathematics-3A triangle has 3 line segments. A triangle has 3 angles.AB, BC and CA are the three line segments.∠A, ∠B and ∠C are the three angles.A, B and C are vertices or corners of the triangle ABC,AB, BC and CA are sides of the triangle ABC.C. Construction of a triangleCan you construct a triangle by using match stick?Try yourself. Steps of constructing a triangle Fix 3 points. Name 3 points. Join any 2 points at a time using the scale as shown in the figure.0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15XY ZXY ZXY ZXY ZGuess the name of the figure?Now, the triangle XYZ is constructed.B CAvertexsidesideanglessideXY Zvertex vertex
Acme Mathematics-3 75Classwork1. Colour the angles in the given triangles:(a) (b) (c)2. Name the triangles:(a) (b) (c)∆ABC ...................... ......................(d) (e) (f)...................... ...................... ......................Exercise 3.31. Join the dots and make the triangles:(a) (b) (c)(d) (e) (f)AB C
76 Acme Mathematics-32. Construct four different triangles using scale and pencil in your exercise book:0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 153. Name the corners and sides of following triangles:(a) (b)A CB................................................PQ R................................................(c) (d)OPN................................................UTS................................................4. Measure the sides of the following triangles [use your scale]:(a) (b)CA B........................................................................PQ R........................................................................(c) (d)PO Q........................................................................E FG........................................................................
Acme Mathematics-3 77ActivityCollect quadrilateral shaped objects or the pictures around you and paste them. An example is given below.Quadrilateral 3.4It is T.V.
78 Acme Mathematics-3 How many pencils are joined together? How many pens are joined together? How are they joined? Guess the name of the figure alongside.The figure is called a quadrilateral. How many line segment are there in the figure? How many angles are formed?A quadrilateral is a closed figure made by four line segments. The following figures are quadrilaterals.The shape is called rectangle. Opposite sides of a rectangle are equal. All angles are equal.The shape is called square All sides of a square are equal. All angles of a square are equal.A. Naming the quadrilateralThe quadrilateral can be named as quadrilateral PQRS or quadrilateral PSRQ. We use capital letters of English alphabet to name the quadrilateral. The symbol is used to denote the quadrilateral. For example PQRS.PSQ R
Acme Mathematics-3 79B. Components of the quadrilateralLook at the given quadrilateral ABCD: How many line segments are there is the quadrilateral ABCD? Can you name the line segments which are in the quadrilateral ABCD? How many angles are there in the quadrilateral ABCD? Can you name the angles?A quadrilateral has 4 line segments.AB, BC, CD and DA are four line segments in the above quadrilateral.∠A , ∠B, ∠C and ∠D are four angles.A, B, C and D are vertices or corners of the quadrilateral ABCD.AB, BC, CD and DA are the sides of the quadrilateral ABCD.C. Construction of a quadrilateralCan you construct a quadrilateral by using match sticks? Try yourself. Steps of construction: Fix 4 points. Name the 4 points.DB CAADB angle CsidevertexDA BCD C0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15A B
80 Acme Mathematics-3 Join any 2 points at a time using a scale as shown in the figure.AD CA BD CA BD CBNow, the quadrilateral ABCD is constructed.D. Rectangular and Square SurfaceStudy the following figures.Figure - 1 Figure - 2 Figure - 3 Figure - 4In the given picture, Figure - 1 and Figure - 2 is rectangular in shape. Their surface are called rectangular surface.Like wise Figure - 3 and Figure - 4 is square in shape. Their surface are called square surface.Classwork1. Name the rectangular shape or square shape in the following figures.(a) (b) (c)
Acme Mathematics-3 81(d) (e) (f)2. Colour the angles in the given quadrilaterals:(a) (b) (c) (d)Exercise 3.41. Name the quadrilaterals:(a) (b) (c)(d) (e) (f)
82 Acme Mathematics-32. Join the dots and make quadrilaterals:(a) (b) (c)(d) (e) (f)3. Construct four different quadrilaterals using scale and pencil in your exercise book:0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 154. Name the angles, corners and sides of the following quadrilaterals:(a) (b)..................................................................................................................................................................................................................DCB APQ SR
Acme Mathematics-3 83(c) (d)..................................................................................................................................................................................................................5. Measure the sides of the following quadrilaterals:(a) (b)A BD CAB=.............BC=.............CD=.............DA=.............PSRQ............................................................................(c) (d)P OM N............................................................................E FH G......................................................... ......................................NEPOV US T
84 Acme Mathematics-3Project Work1. Objective: To identify the shapes.2. Materials required: Scissors Glue Colours Scale Pencil3. Activity: Draw the following shapes by using objects on a cardboard and cut them with scissors. Colour the shapes4. An example is given below:Classify these shapes into different groups.For example:All are triangles.
Acme Mathematics-3 85Project Work1. Objective : To recognize the rectangular and square shape.2. Materials required : A-4 size paper Glue A pair of scissor3. Activity: Collect the objects having rectangular and square shape. Cut the object and paste on A-4 size paper. Name the shape.4. An example is given below:square shape rectangular shape
86 Acme Mathematics-31. Read and write the length of the following objects.(a)0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15............... cm(b)0 cm0 inch 6 5 4 3 2 11 2 3 4 5 6 7 8 9 10 11 12 13 14 15.............. cm2. Join the dots and make a lineBA3. Match the following.TrianglelineangleQuadrilateral4. Tick the rectangular surface objects.book matches box circle cube Mixed Exercise
Acme Mathematics-3 875. Draw a line segment 6 cm long and name it ........................ is a line segment.6. Join the dots and make an angle.7. Colour the greater angle.AB CDE F................................. is greater angle.8. Count the vertices (corners) and write.AB C............verticesQ RP S............vertices9. Join the dots, make the angles and fill in the blanks.CAB CAB........................ is greater angle. ........................ is smaller angle.10. Name sides, vertices and name of the triangle.KP Asides : ............., ..........., ............vertices : ............., ..........., ............name of triangle : ................11. Draw a quadrilateral using any objects in your copy.CAB
88 Acme Mathematics-3COMMUNICATION, TECHNOLOGYAND MARKETTHEME4 Weightage : 224.1 Money - Rupees and paisa - Conversion of rupees and Paisa - Addition of money - Subtraction of money - Word problems on money 4.2 Capacity -Measures of Capacity - Conversion of units of capacity- Addition of units of capacity- Subtraction of units of capacity - Word problems on units of capacity 4.3 Weight - Balance - Measuring weight - Unit of weight - Relation between gram(g) and kilogram (kg)4.4 Pictograph - Reading a pictograph
Acme Mathematics-3 89Match the coin with their namesRe. 1Rs. 5Rs. 1025 paisa50 paisa5 paisa10 paisaRs. 2We writeRe. for a Rupee,Rs. for Rupees andP for paisa.100 paisa = 1 rupee4.1 MoneyActivity-1
90 Acme Mathematics-3Name the following notes.Activity-2
Acme Mathematics-3 91Classwork1. Write in words:How do we write rupees and paisa?100 paisa = 1 rupee Re. 1.00Rs. 10.00Rs. 100.00We write 1 rupee as Re 1.We write 10 rupees as Rs. 10.We write 15 rupees and 75 paisa as Rs. 15.75.(a) Rs. 8.25 = Eight rupees and twenty-five paisa(b) Rs 17.05 = ......................................................(c) Rs. 22.10 = .....................................................(d) Rs. 100.80 = ...................................................(e) Rs. 200.90 = ....................................................(f) Rs. 550.50 = ...................................................2. Write in short form:(a) Four rupees and fifty paisa = Rs. 4.50(b) Six rupees and fifty-five paisa = ................(c) Twelve rupees and sixty paisa = ................(d) Twenty rupees and eighty-five paisa = ................(e) Eight rupees and seventy paisa = ................(f) Twenty– nine rupees and ninety nine paisa = ................100 paisa = 1 Rupee.
92 Acme Mathematics-3A. Rupees and paisaHi! What are you counting?What is money?I'm counting the money I've saved.Everyone uses money for buying and selling. Money is expressed in terms of rupees and paisa.The paisa are in the form of coins. The different type of coins are 1 paisa, 5 paisa, 10 paisa, 25 paisa and 50 paisa. We also have coin for one rupee, two rupees, five rupees and ten rupees. We use some symbol such as (Rs) for rupees, (Re) for rupee and (P) for paisa.We know : 100 paisa = 1 Rupee Rupee Paisa÷×100100We usually express the price of the things in both rupees and paisa. For example, the cost of pen is Rs. 35 and 50 paisa. Instead of writing the price as Rs. 35 and 50 paisa we write Rs. 35.50. Here the symbol dot '.' represents 'And'.The number on the left side of the dot shows rupees and that on the right side of the dot shows paisa.Note : In Rs 35.50 we have not written 'p' after the 50 paisa.Now, complete the tableLong Form Short Form5 rupees and 25 paisa Rs. 5.25..................................... Rs. 100.50160 rupees and 10 paisa ................................879 paisa ................................................................... Rs. 999.00
Acme Mathematics-3 93B. Conversion of rupees and paisa(a) Conversion of rupees into paisaWe know:1 rupee = 100 paisaSo, Rs. 2 = 2 × 100 paisa = 200 paisa(b) Conversion of paisa into rupees:100 paisa = Re 1So, 400 paisa = Rs. 48000 paisa= Rs. 804900 paisa= Rs. 49Classwork1. Fill in the blanks.(a) Our coins are: One rupee coin, ....................(b) Our notes are: One rupee note, ....................(c) Small unit of our money is ....................(d) Large unit of our money is ....................(e) 600 paisa = Rs. ......... (f) Rs. 8 = ............... paisa(g) 500 paisa = Rs. ......... (h) Rs. 7 = ............... paisa(i) 400 paisa = Rs. ......... (j) Rs. 10 = ............... paisa2. Look at the pictures and write their cost in rupees.(a) (b) (c)To convert rupee into paisa we multiply the rupees by 100.To convert paisa into rupees. We divide the paisa by 100.6200 paisa700 paisa600 paisa
94 Acme Mathematics-33. Match the following.(a) Rs 6 1000 paisa(b) Rs. 7 900 paisa(c) Rs. 9 100 paisa(d) Rs. 8 600 paisa(e) Rs. 10 700 paisa(f) Re. 1 800 paisaExercise 4.11. Convert the following rupees into paisa:(a) Rs 9 (b) Rs. 13 (c) Rs. 43(d) Rs. 50 (e) Rs. 69 (f) Rs. 80(g) Rs. 112 (h) Rs. 133 (i) Rs. 2992. Look at the pictures and write their cost in paisa.(a) (b)(c) (d)3. Convert the following paisa into rupees:(a) 4000 paisa (b) 5000 paisa (c) 6000 paisa(d) 7000 paisa (e) 8000 paisa (f) 7700 paisa(g) 8100 paisa (h) 9300 paisa (i) 9800 paisaRs 17Rs 5Rs 15Rs 2.50
Acme Mathematics-3 954. Change into paisa:(a) Rs. 3 and 50 paisa = 300 paisa and 50 paisa = 350 paisa(b) Rs. 2 and 40 paisa = ....... paisa and ....... paisa = ....... paisa(c) Re. 1 and 20 paisa = ....... paisa and ....... paisa = ....... paisa(d) Rs. 6 and 10 paisa = ....... paisa and ....... paisa = ....... paisa(e) Rs. 9 and 05 paisa = ....... paisa and ....... paisa = ....... paisaC. Addition of moneyWe add the amounts of money as we add other numbers!Add : 84 rupees 27 paisa and 65 rupees 65 paisa.Rs P84 27+ 65 65149 92Step I Arrange the Rs and Paisa in column respectively.Step II Add the figures in the paisa column first.Step III Add the figures in the rupees columns.Step IV Convert paisa into Rs. (rupees) if necessary.The sum is Rs. 149.92.Classwork1. Add the following rupees:54 Rupees+ 15 Rupees15 Rupees+ 24 Rupees17 Rupees+ 50 Rupees66 Rupees+ 13 Rupees
96 Acme Mathematics-332 Rupees+ 13 Rupees19 Rupees+ 50 Rupees15 Rupees+ 72 Rupees57 Rupees+ 72 Rupees2. Add the following paisa.:52 Paisa+ 14 Paisa36 Paisa+ 50 Paisa42 Paisa+ 20 Paisa12 Paisa+ 36 Paisa45 Paisa+ 24 Paisa53 Paisa+ 44 Paisa14 Paisa+ 25 Paisa47 Paisa+ 22 Paisa3. Fill in the blanks:(a) 14 paisa + 16 paisa = ................. paisa(b) 80 paisa + 20 paisa = ................. paisa(c) 170 paisa + 40 paisa = ................. paisa(d) 17 paisa + ............... paisa + 15 paisa = 40 paisa(e) ............... paisa + 110 paisa = 340 paisaExercise 4.21. Add the following amount of money:Rs. p54 52+ 15 14Rs. p17 42+ 50 20Rs. p15 36+ 24 50
Acme Mathematics-3 97Rs. p66 12+ 13 36Rs. p32 45+ 13 25Rs. p15 14+ 72 25Rs. p51 42 22 15+ 20 22Rs. p14 23 24 51+ 40 12Rs. p13 24 24 15+ 30 30Rs. p32 05 21 40+ 34 55Rs. p23 20 42 35+ 31 41Rs. p50 12 12 62+ 30 222. Add the following amounts of money:(a) Rs P25 30+ 23 6548 95(b) Rs P39 09+ 58 48(c) Rs P226 90+052 07(d) Rs P325 21207 38+115 40(e) Rs P540 52600 47+713 00(f) Rs P480 76312 02+276 19
98 Acme Mathematics-33. Add the following:(a) Rs 745 + Rs 25 + Rs 98(b) Rs 187 + Rs 222 + Rs 356(c) Rs 12.30 + Rs 37.04 + Rs. 71.41(d) Rs 162.32 + Rs 270.23 + Rs 550.104. Fill in the blanks:(a) 10 rupees and 30 paisa + 20 rupees and 20 paisa = ........... rupees and ............ paisa (b) 5 rupees and 15 paisa + 20 rupees and 40 paisa + 30 rupees and 10 paisa = ........... rupees and ............ paisa(c) 4 rupees and 12 paisa + 15 rupees and 70 paisa + 6 rupees and 14 paisa = ........... rupees and ............ paisaD. Subtraction of moneySubtraction of money is similar to that of ordinary subtraction of number. We arrange the amount in rupees and paisa in columns and write the bigger amount first.Subtract Rs 92.42 from Rs 105.66.Rs P105 66 – 92 4213 24Step I Arrange the Rs and P in column respectively.Subtract the amount in paisa column first. Step II Subtract 66 paisa – 42 paisa = 24 paisaStep III Subtract Rs. 92 from Rs 105.We get, Rs 105 – Rs 92 = Rs 13The difference is Rs. 13.24Point (.) separates rupees and paisa.
Acme Mathematics-3 99Classwork1. Subtract the following rupees:66 Rupees– 51 Rupees56 Rupees– 34 Rupees99 Rupees– 85 Rupees73 Rupees– 19 Rupees86 Rupees– 53 Rupees67 Rupees– 59 Rupees93 Rupees– 88 Rupees75 Rupees– 36 Rupees2. Fill in the blanks:(a) 68 paisa – 54 paisa = ................. paisa(b) 83 paisa – 75 paisa = ................. paisa(c) 130 paisa – 124 paisa = ................. paisa(d) 87 paisa – ............... paisa = 13 paisa(e) 10 rupees and 30 paisa – 6 rupees 20 paisa = ........ rupees....... paisa(f) 15 rupees and 9 paisa – 11 rupees 4 paisa = ........ rupees....... paisaExercise 4.31. Subtract the following paisa:80 Paisa– 20 Paisa96 Paisa– 57 Paisa87 Paisa– 37 Paisa39 Paisa– 18 Paisa52 Paisa– 37 Paisa83 Paisa– 77 Paisa75 Paisa– 59 Paisa91 Paisa– 54 Paisa
100 Acme Mathematics-32. Subtract the following rupees (Rs) and paisa (p) :Rs p9 35– 7 152 20Rs p8 68– 3 65Rs p9 67– 4 50Rs p67 35– 22 15Rs p99 90– 88 85Rs p46 99– 35 85Rs p36 81– 13 20Rs p23 85– 21 32Rs p29 85– 15 39Rs p26 85– 25 65Rs p27 67– 14 45Rs p35 56– 22 35Rs p99 69– 68 37Rs p79 25– 27 12Rs p39 55– 17 30