Multiplying, dividing and mixed operations · Ages 7–8

What multiplying means: equal groups worksheet

Part of: Multiplication and times tables

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Multiplying, dividing and mixed operations · Ages 7–8

Numsprite
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Name:Date:Score:／48

Write each answer in the space. For word problems, show your working and write a sentence answer.

13.Ka-yan reads 6 pages of a storybook every day for 3 days. How many pages is that?
Working:
Answer:
14.A box holds 6 coloured pencils. 4 boxes hold ; one more box, 5 boxes, hold .
Fill in each blank
Working:
Answer:
15.There are 7 egg tarts on each plate, and 2 plates. How many egg tarts is that?
Working:
Answer:
16.Chi-keung buys 9 boxes of coloured pencils, 9 pencils in each box, at $23 a box. How many coloured pencils does Chi-keung buy?
Working:
Answer:
17.Tsz-ching reads 2 pages of a storybook every day for 4 days. How many pages is that?
Working:
Answer:
18.There are 8 siu mai on each plate, and 9 plates. How many siu mai is that?
Working:
Answer:

Show the answers and working

What multiplying means: equal groups worksheet: Answers and working

1. 50
5 lots of 10 means adding 10 again and again, 5 times. Start at 10 and count on in 10s.
Add 10 5 times, or count in 10s 5 times: 50.
2. 6, 2, 12
Count the plates first, then how many are on one plate. The total is that many lots of that number.
6 plates of 2 is 6 lots of 2: 12.
3. 18
2 lots of 9 means adding 9 again and again, 2 times. Start at 9 and count on in 9s.
Add 9 2 times, or count in 9s 2 times: 18.
4. 0
One of the numbers is 0. Think: what do you get when you multiply a number by 0?
0 lots of 3 is 0 and 1 lot is 3; 3 zeros are 0 and 3 ones are 3: 0.
5. 10
One of the numbers is 1. Think: what do you get when you multiply a number by 1?
0 lots of 10 is 0 and 1 lot is 10; 10 zeros are 0 and 10 ones are 10: 10.
6. 3
Count in 8s until you reach 24, keeping track of how many counts it takes.
Count in 8s: reaching 24 takes 3 counts, so 3 lots of 8.
7. 7
Count in 10s until you reach 70, keeping track of how many counts it takes.
Count in 10s: reaching 70 takes 7 counts, so 7 lots of 10.

8. True
5 lots of 5 is 5 × 5. Work that out first, then compare it with 25.
Adding 5 5 times gives 25: 5 × 5 = 25.
9. A
Count two things in each picture: how many plates, and how many on each. You want 5 plates with 3 on each.
“5 lots of 3” is 5 groups with 3 in each.
10. True
3 lots of 8 is 8 × 3. Work that out first, then compare it with 24.
Adding 8 3 times gives 24: 8 × 3 = 24.
11. D
Count two things in each picture: how many plates, and how many on each. You want 3 plates with 5 on each.
“3 lots of 5” is 3 groups with 5 in each.
12. False
5 lots of 9 is 9 × 5. Work that out first, then compare it with 36.
Adding 9 5 times gives 45: 9 × 5 = 45.

Marking: 2 for the working, 1 for the answer, 1 for the sentence.

13. 18 pages
6 pages a day for 3 days is 3 lots of 6. Count in 6s, 3 times.
3 days of 6 pages: 6 × 3 = 18.
14. 24, 30
First work out 4 lots of 6. One more box adds how many more pencils?
4 lots of 6 is 24; one more box adds 6: 30.
15. 14 egg tarts
There are 2 plates with 7 on each: that is 2 lots of 7.
2 lots of 7: 7 × 2 = 14.
16. 81 pencils
First check what is asked: how many pencils, not how much money. Which number isn't needed?
The question asks how many pencils, so the $23 price isn't needed: 9 lots of 9, 9 × 9 = 81.
17. 8 pages
2 pages a day for 4 days is 4 lots of 2. Count in 2s, 4 times.
4 days of 2 pages: 2 × 4 = 8.
18. 72 siu mai
There are 9 plates with 8 on each: that is 9 lots of 8.
9 lots of 8: 8 × 9 = 72.

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