Singapore Math Level 2A & 2B – Unit 5: Multiplying And Dividing Numbers By 2 And 3

Singapore Math Level 2A & 2B – Unit 5: Multiplying And Dividing Numbers By 2 And 3

Example: 

1. Rick has 3 notebooks.
There are 10 pages in each notebook.
How many pages are there in all?
3 × 10 = 30
There are 30 pages in all.
2. Mrs. Mendoza has 18 carrots.
She gives each rabbit 2 carrots.
How many rabbits does she give all her carrots to?
18 ÷ 2 = 9
She gives all her carrots to 9 rabbits.

1. Fill in each blank by counting in twos.

Solution :

6, 8, 12

2. Fill in each blank by counting in threes.

Solution :

9, 12, 18

Fill in each blank with the correct answer.

3. 4×2=…….
4. 6×2=……
5. 5×3=……
6. 8×2=……
7. 9×3=……
8. 3×3=……
9. 7×3=……
10. 9 × 2=……
11. 6 × 3=……
12. 5 × 2=……

Solution :

3. 8
4. 12
5. 15
6. 16
7. 27
8. 9
9. 21
10. 18
11. 18
12. 10

Fill in each blank with the correct answer.

13. _____× 2 = 20
14. _____× 3 = 15
15. 2 ×=_____ 12
16. 3 ×_____=9
17. 3 ×_____= 18
18. 3 ×______= 27
19. 2 ×_____= 10
20. _____× 3 = 12
21. _____× 2 = 16
22. _____× 2 = 18

Solution :

13. 10
14. 5
15. 6
16. 3
17. 6
18. 9
19. 5
20. 4
21. 8
22. 9

Fill in each blank with the correct answer.

23. 30 ÷ 3 =_____
24. 21 ÷ 3 =_____
25. 16 ÷ 2 =_____
26. 18 ÷ 3 =_____
27. 14 ÷ 2 =_____
28. 8 ÷ 2 =_____
29. 12 ÷ 2 =_____
30. 15 ÷ 3 =_____
31. 10 ÷ 2 =_____
32. 24 ÷ 3 =_____

Solution :

23. 10
24. 7
25. 8
26. 6
27. 7
28. 4
29. 6
30. 5
31. 5
32. 8
33. Match each car to the correct owner.

Solution :

Solve the following story problems. Show your work in the space below.

34. Taylor bought 4 boxes of cake. There were 3 pieces of cake in each box. How many pieces of cake were there altogether?

There were_____pieces of cake altogether.

Solution :

4 × 3 = 12

There were 12 pieces of cakes altogether.

35. There are 3 stars on a flag. There are 7 flags. How many stars are there altogether?

There are_____stars altogether.

Solution :

7 × 3 = 21

There are 21 stars altogether.

36. Each tricycle has 3 wheels. There are 15 wheels altogether. How many tricycles are there?

There are_____tricycles.

Solution :

15 ÷ 3 = 5

There are 5 tricycles.

37. Eliza baked 14 muffins. She gave 2 muffins to each of her friends. How many friends did she give the muffins to?

She gave the muffins to_____friends.

Solution :

14 ÷ 2 = 7

She gave the muffins to 7 friends.

38. Minh packs 3 tennis balls into each bag. If there are 27 tennis balls, how many bags will she need?

She will need_____bags.

Solution :

27 ÷ 3 = 9

She will need 9 bags.

39. The picture below shows several items sold at a drugstore.

(a) Jane buys 4 erasers. How much does she pay in all? $_____

(b) Luke has $12. How many pens can he buy? _____pens

(c) Ken buys 3 pens. How much does he pay altogether? $_____

(d) Jade has $16. How many erasers can she buy? _____erasers

(e) There are 4 students in a group. If Mrs. Moran gives 3 pencils to each student, how many pencils does she need to buy? _____pencils

Solution :

 (a)

4 × $2 = $8

Ans: $8

(b)

$12 ÷ $3 = 4

Ans: 4 pens

(c)

3 × $3 = $9

Ans: $9

(d)

$16 ÷ $2 = 8

8 erasers

(e)

4 × 3 = 12

Ans: 12 pensils

40. Complete the crossword puzzle with the correct answers.

Solution :

Singapore Math Level 2A & 2B – Unit 5- Multiplying And Dividing Numbers By 2 And 3