Decimals and percentages · Ages 10–11

Decimals ×10, ×100, ×1000 worksheet

Part of: Multiplying decimals

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Decimals and percentages · Ages 10–11

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

13.A sheet of paper is 0.06 mm thick. How thick is a pile of 100 sheets, in millimetres?
Answer as a decimal
Working:
Answer:
14.A coin weighs 8.8 g. How many grams do 100 such coins weigh?
Answer as a decimal
Working:
Answer:
15.A sheet of paper is 0.13 mm thick. How thick is a pile of 1000 sheets, in millimetres?
Answer as a decimal
Working:
Answer:
16.A coin weighs 8.3 g. How many grams do 100 such coins weigh?
Answer as a decimal
Working:
Answer:
17.Highlighters cost $6.1 each. An office buys 100 of them. How many dollars must it pay?
Answer as a decimal
Working:
Answer:
18.Highlighters cost $8.2 each. An office buys 100 of them. How many dollars must it pay?
Answer as a decimal
Working:
Answer:

Show the answers and working

Decimals ×10, ×100, ×1000 worksheet: Answers and working

1. 9.37 × 100 = 937
9.37 × 100: ×100 moves the point two places right, 9.37 × 100 = 937
2. 0.449 × 100 = 44.9
0.449 × 100: ×100 moves the point two places right, and the zeros left at the front aren't written, 0.449 × 100 = 44.9
3. 0.779 × 1000 = 779
0.779 × 1000: ×1000 moves the point three places right, and the zeros left at the front aren't written, 0.779 × 1000 = 779
4. 9.26 × 10 = 92.6
9.26 × 10: ×10 moves the point one place right, 9.26 × 10 = 92.6
5. 37.5 × 100 = 3750
37.5 × 100: ×100 moves the point two places right, filling in zeros at the end, 37.5 × 100 = 3750
6. 4.62 × 1000 = 4620
4.62 × 1000: ×1000 moves the point three places right, filling in zeros at the end, 4.62 × 1000 = 4620
7. 0.638 × 10 = 6.38
0.638 × 10: ×10 moves the point one place right, and the zeros left at the front aren't written, 0.638 × 10 = 6.38
8. 8.64 × 1000 = 8640
8.64 × 1000: ×1000 moves the point three places right, filling in zeros at the end, 8.64 × 1000 = 8640
9. 3.68 × 100 = 368
3.68 × 100: ×100 moves the point two places right, 3.68 × 100 = 368
10. 53.9 × 10 = 539
53.9 × 10: ×10 moves the point one place right, 53.9 × 10 = 539
11. 0.017 × 1000 = 17
0.017 × 1000: ×1000 moves the point three places right, and the zeros left at the front aren't written, 0.017 × 1000 = 17
12. 97.3 × 1000 = 97300
97.3 × 1000: ×1000 moves the point three places right, filling in zeros at the end, 97.3 × 1000 = 97300

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

13. A sheet of paper is 0.06 mm thick. How thick is a pile of 100 sheets, in millimetres? (Answer: 6 mm)
0.06 × 100 = 6
14. A coin weighs 8.8 g. How many grams do 100 such coins weigh? (Answer: 880 g)
8.8 × 100 = 880
15. A sheet of paper is 0.13 mm thick. How thick is a pile of 1000 sheets, in millimetres? (Answer: 130 mm)
0.13 × 1000 = 130
16. A coin weighs 8.3 g. How many grams do 100 such coins weigh? (Answer: 830 g)
8.3 × 100 = 830
17. Highlighters cost $6.1 each. An office buys 100 of them. How many dollars must it pay? (Answer: 610 dollars)
6.1 × 100 = 610
18. Highlighters cost $8.2 each. An office buys 100 of them. How many dollars must it pay? (Answer: 820 dollars)
8.2 × 100 = 820

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