Maharashtra Board Standard First-Mathematics

Thirteen and one make fourteen 14

+= Fourteen

One Ten Four Units

Fourteen and one make fifteen 15

+= Fifteen

One Ten Five Units

42

Fifteen and one make sixteen 16

+= Sixteen

One Ten Six Units

Sixteen and one make seventeen 17

+= Seventeen

One Ten SevenUnits

43

Seventeen and one make eighteen 18

+= Eighteen

One Ten Eight Units

Eighteen and one make nineteen 19

+= Nineteen

One Ten Nine Units

44

Nineteen and one make Twenty 20

+= Twenty

One Ten Ten Units

There is no digit bigger that 9. So, if there are 10 units, we tie them in
a bundle. Keep that bundle in ten’s house on the left.

Now, there are two bundles of ten and nothing is left in unit’s house,
so we write zero there.

2 Tens 0 Units 2 Tens 0 Units

Eleven Twelve arrange, books on shelves

Thirteen Fourteen put garbage in the bin

Fifteen Sixteen Keep your room clean Teachers can use this song to make
children learn numbers from 11 to
Seventeen Eighteen See, plants are green 20. If children know the sequence,
counting will be easy for them.
Nineteen Twenty Flowers are in plenty !

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Steps of 'Ten'

Let’s learn...

Two 20 Twenty
Tens 30 Thirty
40 Fourty
Three 50 Fifty
Tens 60 Sixty
70 Seventy
Four 80 Eighty
Tens 90 Ninety

Five
Tens

Six
Tens

Seven
Tens

Eight
Tens

Nine
Tens

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Coins and
currency notes

1 rupee 2 rupees 5 rupees 10 rupees

One rupee Two rupees Five rupees Ten rupees Twenty rupees
How can you give exact amount ?
2 rupees
4 rupees

5 rupees

10 rupees

20 rupees
Think

Can you make up the same amounts using other
combinations of currency notes and coins ?
47

Which notes or coins will you pay to buy given articles ?

Article Price Coins/Notes

3 rupees

12 rupees

18 rupees

Find the price of the article by counting coins.

Article Coins Price

Read and write the answers.

1) A bunch of methi costs 10 rupees. How many five-rupee coins are

needed to pay for it ?

2) A pencil was bought by giving 3 coins of two-rupee, so what was the

price of the pencil ?

3) The price of a candle is rupees 10 and price of a match box is rupee1.

Find the total price of one candle and one match box.

4) Ajahar bought a note book by giving one currency note of 10

rupees and one coin of rupees 10, what is the cost of the note book ?



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Part Two

Introduction and

writing of 21 to 30

Let’s learn...

Tens Units Twenty One 21
Two Tens 22
23
2 1 One Unit 24
25
22 Two Tens Twenty Two 26
27
Two Units 28

23 Two Tens Twenty Three

Three Units

24 Two Tens Twenty Four

Four Units

25 Two Tens Twenty Five

Five Units

26 Two Tens Twenty Six

Six Units

27 Two Tens Twenty Seven

Seven Units

28 Two Tens Twenty Eight

Eight Units

29 Two Tens Twenty Nine 29

Nine Units

3 0 Three Tens Thirty 30

Toran of consecutive numbers.
House numbers in succession

22 25 28
49

Introduction and

writing of 31 to 40

Let’s learn...

Tens Units Three Tens
Thirty One 31

3 1 One Unit

32 Three Tens Thirty Two 32

Two Units

3 3 Three Tens Thirty Three 33
Three Units

34 Three Tens Thirty Four 34

Four Unit

35 Three Tens Thirty Five 35

Five Units

36 Three Tens Thirty Six 36

Six Units

37 Three Tens Thirty Seven 37

Seven Units

3 8 Three Tens Thirty Eight 38
Eight Units

3 9 Three Tens Thirty Nine 39
Nine Units

4 0 Four Tens Fourty 40
Toran of consecutive numbers.
Write correct numbers in the blank spaces.

32 35 38

50

Let's join the dots in correct order and fly in the sky.

11 14 15
12 13 16

17

20 18

19

Write the next two successive numbers.

25
Write the middle number in gap.

36 38
Write the two successive numbers before the given numbers.

14 15
51

Introduction and

writing of 41 to 50

Let’s learn...

Tens Units Four Tens Forty One 41
41 One Unit Forty Two 42
Four Tens 43
42 Two Units 44
45
43 Four Tens Forty Three 46
47
Three Units 48
49
44 Four Tens Forty Four

Four Units

45 Four Tens Forty Five

Five Units

46 Four Tens Forty Six

Six Units

47 Four Tens Forty Seven

Seven Units

48 Four Tens Forty Eight

Eight Units

49 Four Tens Forty Nine

Nine Units

5 0 Five Tens Fifty 50

Toran of consecutive numbers.

Write correct numbers in the blank spaces.

42 47
52

Introduction and

writing of 51 to 60

Let’s learn...

Tens Units Five Tens Fifty One 51
5 1 One Unit

52 Five Tens Fifty Two 52

Two Units

53 Five Tens Fifty Three 53

Three Units

54 Five Tens Fifty Four 54

Four Units

55 Five Tens Fifty Five 55

Five Units

56 Five Tens Fifty Six 56

Six Units

57 Five Tens Fifty Seven 57

Seven Units

58 Five Tens Fifty Eight 58

Eight Units

59 Five Tens Fifty Nine 59

Nine Units

6 0 Six Tens Sixty 60

Toran of consecutive numbers. 60

Write correct numbers in the blank spaces.

51 55

53

Introduction and

writing of 61 to 70

Let’s learn...

Tens Units Six Tens Sixty One 61
6 1 One Unit

62 Six Tens Sixty Two 62

Two Units

63 Six Tens Sixty Three 63

Three Units

64 Six Tens Sixty Four 64

Four Units

65 Six Tens Sixty Five 65

Five Units

66 Six Tens Sixty Six 66

Six Units

67 Six Tens Sixty Seven 67

Seven Units

68 Six Tens Sixty Eight 68

Eight Units

69 Six Tens Sixty Nine 69

Nine Units

7 0 Seven Tens Seventy 70

Toran of consecutive numbers. 70

Write correct numbers in the blank spaces.

61 65

54

Introduction and

writing of 71 to 80

Let’s learn...

Tens Units Seven Tens
Seventy One 71

7 1 One Unit

72 Seven Tens Seventy Two 72

Two Units

73 Seven Tens Seventy Three 73

Three Units

74 Seven Tens Seventy Four 74

Four Units

75 Seven Tens Seventy Five 75

Five Units

76 Seven Tens Seventy Six 76

Six Units

77 Seven Tens Seventy Seven 77

Seven Units

78 Seven Tens Seventy Eight 78

Eilght Units

79 Seven Tens Seventy Nine 79

Nine Units

8 0 Eight Tens Eighty 80

Toran of consecutive numbers.

Write correct numbers in the blank spaces.

72 76

55

Introduction and

writing of 81 to 90

Let’s Understand ...

Tens Units Eight tens
Eighty One 81

8 1 One unit

82 Eight tens Eighty Two 82

Two units

83 Eight tens Eighty Three 83

Three units

84 Eight tens Eighty Four 84

Four units

85 Eight tens Eighty Five 85

Five units

86 Eight tens Eighty Six 86

Six units

87 Eight tens Eighty Seven 87

Seven units

88 Eight tens Eighty Eight 88

Eight units

89 Eight tens Eighty Nine 89

Nine units

9 0 Nine tens Ninety 90

Toran of consecutive numbers. 90
Write correct numbers in the blank spaces

85

56

Introduction and

writing of 91 to 99

Let’s Understand ...

Tens Units Nine tens
Ninety One 91

9 1 One unit

92 Nine tens Ninety Two 92

Two units

93 Nine tens Ninety Three 93

Three units

94 nine tens Ninety Four 94

Four units

95 Nine tens Ninety Five 95

Five units

96 Nine tens Ninety Six 96

Six units

97 Nine tens Ninety Seven 97

Seven units

98 Nine tens Ninety Eight 98

Eight units

99 Nine tens Ninety Nine 99

Nine units

Toran of consecutive numbers.
Write correct numbers in the blank spaces

93 97

57

Write the numbers in correct order on the back of caterpillar.

81 82 84

88
41

46 51 93
57 35

25 30

58

Introducing Hundred

Learn this.
What is the sum of 99 and 1 ? How can we write it?

99 = 9 tens + 9 units

9 tens 9 units 1 unit

There is no digit bigger than nine. When there are 10 units in the units

house, make a bundle of them and place it in the house of tens on left.

99+1 = +=

9 tens 1 ten 10 tens

Now there are 10 tens in the tens house. Make a big bundle of 10 tens.

Place this bundle in a house on the left. This big bundle is known as

‘Hundred’. It is written as '100'.

1 hundred 0 0 It contains
one hundred,
Hundred Zero tens Zero units zero ten and
1 Tens Units zero unit. So
0 0 a hundred is

written as
'100'

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Addition - upto 20

We learnt small additions, now let's learn more additions.

5 + 4=9

8 + 5=

10 + 3 = 13 13 + 2 =

Story of Addition

One day, Yash was reading a story book at home.When

his father came home, he saw Yash reading a book. He

was very happy. He hugged him. Yash told, " Dad, I have already

read all the seven books". His father praised him and said," Oh nice !

very good!"
Father was so pleased that he gave four more books to him.

Yash also became very happy. Now how many books does Yash

have ?

Now find .....
1) How many books did Yash have before ?
2) How many books did father give to Yash as a gift?
3) How many books does Yash have in total ?

60

Addition by counting
forward

1 Let's add five and three. Count three
2
345 8 numbers after five. 6, 7, 8. Total beads

6 7 are 8. So the sum is 8.

Now, let's find the sum of eight

and five. For it, count five 13
8 9 10 11 12
beads after 8 beads. 9, 10, 11,
12, 13. So total beads are 13.

While adding two numbers, count forward the numbers equal to

the second number after the first number. Addition will be easy if

we take bigger number and then count forward the smaller

number. While adding 4 + 9 counting four numbers after 9 is

easier than counting nine numbers after 4.

Let's practise Addition.

8 47 7 12

++ 6 +9 +5 +7 +4

15 17 12 13 11

+5 +2 + 6 + 4 +7

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Patterns

Draw next three pictures in order or write next three
numbers in order.

414 1 4 1 4
23 42 3 4
Observe and colour 1 2 3

12 1 2 1 2 1 2 1 2 1 2
23 2 3 2 3 2 3 2 3 2 3
31 31 313 13 1 3 1

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Colour the In - Out

below the picture showing puppy in the basket.

Colour the below the picture showing a man outside the car.

Broad - Narrow
Colour the box below the picture showing broad road.

Colour the box below the picture of narrow brush.
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Identifying Shapes

Observe the shapes.

count objects of these shapes and write their numbers.

== =

64

Long - Short

the object which is short.

the object which is long.

Arrange the objects according to increasing order of their lengths.
4
1
3
2

65

Longest - Shortest

Longest Shortest
below the longest caterpillar.
Colour the

Colour the near the shortest queue.

66

Tall - Short

Colour below tall object.

Colour below short object.

67

Tallest - Shortest

Colour the below the tallest dog.

Colour the below the shortest tree.

Colour the below the
shortest pillar
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Heavy Light

Colour the below the heavy object.

Colour the below the light object.

Discuss.
Are the bigger objects always
heavier?

69

Near Far

The is near Rama and the is far from Rama.

Save water

Who is the nearest to the well ?
Who is the farthest from the well ?

70

Left Right
Left Right

Turn Left. Turn Right.

71

Less time - More time

Colour under the vessel which will fill in less time.

Colour under the picture of the

vehicle which takes more time for journey.

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What is next ?

Observe the picture. Write proper order of activities.

1 32
1

2

3
73

Let us measure

A bedcover is needed for Yash's cot.
One is very short, the other is very long.

Measure the length of Yash does not have
the cot. Then decide the a tape to measure.
measure of the bedcover. Let's measure the
length by span.

Yash measured the length as 11 spans. So the length of bedcover
should be 13 spans, as it has to be a little longer.

Discuss: Think of objects whose lengths are measured.
Which instrument should be used to measure length ?

1) Measure the distance by feet between

two flowerpots nearby. feet.

2) Guess the length of a news - paper. Measure it

by span and write. spans

74

Days of a week

Saturday Sunday Monday
Friday Tuesday
Days of a
week

Thursday Wednesday

Day Monday Tuesday Wednesday Thursday Friday

Games Kho-Kho Langadi Tip-cat Hide and seek lagori

See the above table and write answers in the boxes.

1) Which game do children play on 2) Which day they play hide and

Tuesday ? seek?

3) If children are playing today Kho- 4) If yesterday children played

-Kho, which game will they play Langadi, which game will they
tomorrow ? play today ?

Saturday Sunday Monday

Yesterday Today Tomorrow
there will be school as
there was a picnic for our school is a holiday for
usual
our school

75

Let us observe
and understand

Observe the picture. Write the answers.

1) Which animal is in the least number ?
2) Which animal is in the largest number ?
3) How many lions are there in the zoo ?
4) How many deer are there in the zoo ?
5) Which animal has a count of two ?

Which is your favourite animal of the above
animals ? Why ?

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