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Multiplying Decimals Worksheet

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Multiplying Decimals Worksheet

Multiplying Decimals Worksheet

Decimal multiplication illustration

🔢 Part 1: Multiplying by 10

Remember: When multiplying by 10, the decimal point moves 1 place to the right.

1. Calculate the following:

a) 3.4 × 10 = _______

b) 0.67 × 10 = _______

c) 12.8 × 10 = _______

d) 0.05 × 10 = _______

e) 9.23 × 10 = _______

2. Circle the correct answer:

What is 4.56 × 10?

0.456

45.6

456

4.56

💯 Part 2: Multiplying by 100

Remember: When multiplying by 100, the decimal point moves 2 places to the right.

3. Calculate the following:

a) 2.7 × 100 = _______

b) 0.34 × 100 = _______

c) 5.68 × 100 = _______

d) 0.09 × 100 = _______

e) 1.456 × 100 = _______

4. Which of these are correct? Check all that apply:

3.2 × 100 = 320

0.75 × 100 = 7.5

1.48 × 100 = 148

0.06 × 100 = 6

🎯 Part 3: Multiplying by 1000

Remember: When multiplying by 1000, the decimal point moves 3 places to the right.

5. Calculate the following:

a) 4.5 × 1000 = _______

b) 0.123 × 1000 = _______

c) 2.67 × 1000 = _______

d) 0.008 × 1000 = _______

e) 7.234 × 1000 = _______

6. Show your working for this problem:

A packet of lollies costs $0.85. How much would 1000 packets cost?

🧩 Part 4: Mixed Practice

7. Fill in the missing numbers:

a) 6.7 × _____ = 67

b) 0.45 × _____ = 450

c) 3.21 × _____ = 3210

d) _____ × 100 = 890

e) _____ × 1000 = 5600

8. Match each calculation with its correct answer:
1. 2.4 × 10
2. 2.4 × 100
3. 2.4 × 1000
4. 0.24 × 100
A. 2400
B. 24
C. 240
D. 24

📝 Part 5: Word Problems

9. A single marble weighs 0.025 kilograms. What is the total weight of 100 marbles?
10. The distance from the school to the library is 1.35 kilometres. If Sarah walks this route 10 times in a week, how many metres has she walked in total?
11. Explain in your own words what happens to the decimal point when you multiply a decimal by 1000:
12. Challenge: A recipe calls for 0.375 litres of milk. If the chef wants to make 1000 servings, how many litres of milk will be needed?

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