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Estimating Products & Quotients — Easy Worksheet 2
Grade 4 · MathSheets Name: ____________________ Date: __________
Estimate. Round the way each question says. To divide, change the dividend to the closest compatible number: a basic fact for the divisor followed by zeros.
How to solve
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Example
Round 89 to the nearest ten, then multiply: 89 × 7 ≈ ___
Answer: 630
✓ Correct!
Not quite. The answer is
💡 How to solve: Estimating Products & Quotients
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Try a similar one
Round 32 to the nearest ten, then multiply: 32 × 8 ≈ ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
✓ Correct!
Not quite. The answer is
💡 How to solve: Estimating Products & Quotients
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Try a similar one
Round 28 to the nearest ten, then multiply: 28 × 3 ≈ ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
✓ Correct!
Not quite. The answer is
💡 How to solve: Estimating Products & Quotients
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Try a similar one
Round 84 to the nearest ten, then multiply: 84 × 4 ≈ ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
✓ Correct!
Not quite. The answer is
💡 How to solve: Estimating Products & Quotients
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Try a similar one
Round 24 to the nearest ten, then multiply: 24 × 9 ≈ ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
✓ Correct!
Not quite. The answer is
💡 How to solve: Estimating Products & Quotients
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Try a similar one
Round 21 to the nearest ten, then multiply: 21 × 9 ≈ ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
✓ Correct!
Not quite. The answer is
💡 How to solve: Estimating Products & Quotients
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Try a similar one
Round 76 to the nearest ten, then multiply: 76 × 6 ≈ ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
✓ Correct!
Not quite. The answer is
💡 How to solve: Estimating Products & Quotients
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Try a similar one
Round 46 to the nearest ten, then multiply: 46 × 7 ≈ ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
✓ Correct!
Not quite. The answer is
💡 How to solve: Estimating Products & Quotients
To estimate a product, round first and then multiply: 47 × 6 is about 50 × 6 = 300, and 38 × 52 is about 40 × 50 = 2,000. To estimate a quotient, use compatible numbers: change the dividend to the closest number that makes a basic fact with the divisor. For 178 ÷ 3, think of 18 ÷ 3 = 6, so use 180 ÷ 3 = 60. If you rounded a factor up, the exact product is less than your estimate; if you rounded down, it is greater. An estimate tells you whether an exact answer is reasonable.
Try a similar one
Round 66 to the nearest ten, then multiply: 66 × 9 ≈ ___
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
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Estimating Products & Quotients — Easy Worksheet 2
Estimate. Round the way each question says. To divide, change the dividend to the closest compatible number: a basic fact for the divisor followed by zeros.