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Multiplying Decimals Less Than 1 (Tenths × Tenths) — Easy Worksheet 1
Grade 5 · MathSheets Name: ____________________ Date: __________
Answer each question. The same kind of product comes in different shapes. Write zeros in front if you need more decimal places.
How to solve
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Example
0.2 × 0.6 = ___
Answer: 0.12
Warm-up
Not quite. The answer is
💡 Multiply as whole numbers: 8 × 4 = 32. 0.8 has 1 decimal place and 0.4 has 1 decimal place, so the product has 2: 0.32.
✓ Correct!
Not quite. The answer is
💡 Multiply as whole numbers: 8 × 4 = 32. 0.8 has 1 decimal place and 0.4 has 1 decimal place, so the product has 2: 0.32.
💡 How to solve: Multiplying Decimals Less Than 1 (Tenths × Tenths)
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Try a similar one
0.1 × 0.2 = ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Multiply as whole numbers: 7 × 3 = 21. 0.7 has 1 decimal place and 0.3 has 1 decimal place, so the product has 2: 0.21.
✓ Correct!
Not quite. The answer is
💡 Multiply as whole numbers: 7 × 3 = 21. 0.7 has 1 decimal place and 0.3 has 1 decimal place, so the product has 2: 0.21.
💡 How to solve: Multiplying Decimals Less Than 1 (Tenths × Tenths)
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Try a similar one
0.8 × 0.6 = ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Picture it
Not quite. The answer is
💡 The dark squares make a rectangle 2 columns wide and 9 rows tall: 2 × 9 = 18 squares. Each square is 0.01, so 18 hundredths is 0.18. So 0.2 × 0.9 = 0.18.
✓ Correct!
Not quite. The answer is
💡 The dark squares make a rectangle 2 columns wide and 9 rows tall: 2 × 9 = 18 squares. Each square is 0.01, so 18 hundredths is 0.18. So 0.2 × 0.9 = 0.18.
💡 How to solve: Multiplying Decimals Less Than 1 (Tenths × Tenths)
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Try a similar one
0.8 × 0.4 = ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Think it through
Not quite. The answer is
💡 Multiply as whole numbers: 3 × 5 = 15. 0.3 has 1 decimal place and 0.5 has 1 decimal place, so the product has 2: 0.15.
✓ Correct!
Not quite. The answer is
💡 Multiply as whole numbers: 3 × 5 = 15. 0.3 has 1 decimal place and 0.5 has 1 decimal place, so the product has 2: 0.15.
💡 How to solve: Multiplying Decimals Less Than 1 (Tenths × Tenths)
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Try a similar one
0.7 × 0.7 = ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 The denominator 100 has 2 zeros, so the decimal has 2 places: 32100 = 0.32.
✓ Correct!
Not quite. The answer is
💡 The denominator 100 has 2 zeros, so the decimal has 2 places: 32100 = 0.32.
💡 How to solve: Multiplying Decimals Less Than 1 (Tenths × Tenths)
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Try a similar one
0.2 × 0.4 = ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Multiply as whole numbers: 1 × 5 = 5. 0.1 has 1 decimal place and 0.5 has 1 decimal place, so the product has 2: 0.05. Max said 0.5, so no.
✓ Correct!
Not quite. The answer is
💡 Multiply as whole numbers: 1 × 5 = 5. 0.1 has 1 decimal place and 0.5 has 1 decimal place, so the product has 2: 0.05. Max said 0.5, so no.
💡 How to solve: Multiplying Decimals Less Than 1 (Tenths × Tenths)
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Try a similar one
0.4 × 0.9 = ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Challenge
Not quite. The answer is
💡 Without the decimal points: 4 × ___ = 4, and 4 ÷ 4 = 1. 0.04 has 2 decimal places and 0.4 has 1, so the missing number has 2 − 1 = 1: 0.1. Check: 0.4 × 0.1 = 0.04.
✓ Correct!
Not quite. The answer is
💡 Without the decimal points: 4 × ___ = 4, and 4 ÷ 4 = 1. 0.04 has 2 decimal places and 0.4 has 1, so the missing number has 2 − 1 = 1: 0.1. Check: 0.4 × 0.1 = 0.04.
💡 How to solve: Multiplying Decimals Less Than 1 (Tenths × Tenths)
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Try a similar one
0.3 × 0.4 = ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Area is length × width, so multiply: 0.4 × 0.8. Multiply as whole numbers: 4 × 8 = 32. 0.4 has 1 decimal place and 0.8 has 1 decimal place, so the product has 2: 0.32. The answer is 0.32 square meters.
✓ Correct!
Not quite. The answer is
💡 Area is length × width, so multiply: 0.4 × 0.8. Multiply as whole numbers: 4 × 8 = 32. 0.4 has 1 decimal place and 0.8 has 1 decimal place, so the product has 2: 0.32. The answer is 0.32 square meters.
💡 How to solve: Multiplying Decimals Less Than 1 (Tenths × Tenths)
Multiply the digits as whole numbers (0.3 × 0.7 → 3 × 7 = 21). Add the decimal places of both factors (1 + 1 = 2) and give the answer that many: 0.21. If there are not enough digits, write zeros in front: 0.04 × 0.2 → 4 × 2 = 8, 3 places → 0.008.
Try a similar one
0.3 × 0.4 = ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
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Multiplying Decimals Less Than 1 (Tenths × Tenths) — Easy Worksheet 1
Answer each question. The same kind of product comes in different shapes. Write zeros in front if you need more decimal places.