Semester 2 Review 2 (Lesson 43)

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Primary 2: Boost! Math

Section A (10 x 2 marks)

For each question, four options are given. Choose the correct answers and

write its number (1, 2, 3 or 4) in the brackets provided.

1. Which of the following is the same as 9 + 9 + 9?

(1) 3 threes ()

(2) 3 nines

(3) 9 threes

(4) 9 nines

2. Which of the following fractions is the smallest?

(1) 1

8

(2) 1

(3 ) 17

6

(4) 1 ( )

5

3. How many quarter circles are there in the diagram below?

(1) 5 ()

(2) 6

(3) 3

(4) 4

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4. What fraction of the figure is unshaded?

(1) 5

12

(2 ) 12

5

(3) 7

12

12

(4 ) 7 ()

5. How many 2 ℓbottles of rose syrup is needed to fill up a 18 ℓlarge

container?

(1) 5 ( )

(2) 9

(3) 10

(4) 12

6. If shows 1 , which of the following figures shows 1 whole?

(1) 4

(2)

(3)

(4) ( )

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7. How much wider is Ben's spectacles than Adam's?

cm

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Adam’s Spectacles Ben’s Spectacles

()

(1) 1 cm

(2) 2 cm

(3) 3 cm

(4) 4 cm

8. What is the mass of the one toy rubber duck?

(1) 10 g 10 g 1100gg

(2) 20 g

(3) 30 g 20 g 20 g 20 g

(4) 40 g

()

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9. The time is now 10.50 p.m. Which number should the missing minute hand be

pointing to?

(1) 5 ()

(2)

7 (3)1

0 (4) 11

10. Mrs Ho filled up a pitcher with 3 litres of water.

All of the water in the pitcher fills up 6 mugs below.

How many ml is in a mug? ()

(1) 600 mℓ 4

(2) 500 mℓ

(3) 300 mℓ

(4) 400 mℓ

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Section B (10 x 2 marks)

Show your workings clearly and write your answers in the spaces provided. For

questions that required units, give your answers in the units stated.

11. 4 and make 1 whole.

10

What is the missing fraction in the box?

1 whole 4 12 Ans:

32 5

12. Find the missing number. 5?

23 51 9

15 6

Ans:

13. What comes next in the pattern below?

Ans:

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14. State the volume of the water in the container below.

200 mℓ

100 mℓ

Ans: ml

15. Jake bought 15 t-shirts.

He bought 3 times as many t-shirts as Joseph.

How many t-shirts did Joseph buy?

Ans: $

16. Meiling has 198 beads.

79 beads are pink and the rest are blue.

How many more blue beads than pink beads does she have?

6Ans:

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17. Study the diagram below.

= 100 g 100 g

= ++

= +-

What is the mass of ?

Ans: kg

18. Kayla reads 2 pages of a novel on Monday, 3 pages on Tuesday, 4 pages on

Wednesday and so on. How many pages would she have read in total on

Friday?

Ans:

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19. Lisa cut a pizza into 6 equal slices.

She ate 2 slices.

Her mother ate 1 slice.

What fraction of the pizza was left?

Ans:

20. Look at the figure below. How many flat surfaces are there?

Ans:

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Section C (30 marks)

Questions 21 to 24 carry 3 marks each.

Questions 25 to 26 carry 4 marks each.

Do the following sums. Show your workings clearly. For questions that

required units, give your answers in the units stated.

21. Tricia baked 287 cream puffs on Saturday.

She baked 121 fewer cream puffs on Sunday than on Saturday.

(a) How many cream puffs did she bake on Sunday? [1 mark]

Tricia baked cream puffs on Sunday.

(b) How many cream puffs did she bake on both days? [2 marks]

Tricia baked cream puffs on both days. 9

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22. Mr Lim bought 6 boxes of curry buns.

There were 5 buns in each box.

He put the buns equally on 2 plates.

(a) How many buns were there on each plate? [1 mark]

There were buns on each plate.

(b) Each bun cost 20 cents. How much did each box of buns cost? [2 marks]

(State your answer in dollars and cents.)

Each box of buns cost .

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23. A painter bought 60 ℓof paint.

He used 30 ℓto paint 3 bedrooms and 15 ℓto paint the kitchen.

(a) How many litres of paint had he left? [1 mark]

He had of paint left.

(b) The living room required 35 ℓ of paint. How much more paint did the

painter need to paint the living room? [2 marks]

He needed of paint to paint the living room.

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24. Jim cycled 235 km on Saturday.

He jogged twice as far on Sunday than on Saturday.

(a) How far did Jim cycle on Sunday? 91 mark]

Jim cycled on Sunday.

(b) The following weekend, Jim cycled twice the distance. How far did he cycle

the following week? [2 marks]

Jim cycled the following weekend. 12

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25. Margaret baked a pie and cut in into 11 equal slices. Abel ate 1 slice, Betty ate

4 slices and Colin ate 2 slices.

(a) What fraction of the pie was left? [2 marks]

of the pie was left.

(b) Darren and Ethan shared the remaining pie equally.

What fraction of the pie did each of the boys eat? [2 marks]

Each of the boys ate of the pie.

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26. Study the diagram below and answer the questions that follow.

bottles 2ℓ

Jugs 4ℓ

W ooden 40 ℓ

tubs

(a) How many bottles of water are needed to fill up 2 jugs? [1 mark]

bottles of water are needed to fill up 2 jugs.

(b) How many jugs of water are needed to fill up 1 wooden tub? [ 3 marks]

jugs of water are needed to fill up 1 wooden tub. 14