Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 82 + 57 by rounding each number to the nearest 10: ______
- Estimate 85 + 40 by rounding each number to the nearest 10: ______
- Estimate 43 − 74 by rounding each number to the nearest 10: ______
- Estimate 76 − 49 by rounding each number to the nearest 10: ______
- Estimate 79 + 50 by rounding each number to the nearest 10: ______
- Estimate 56 − 76 by rounding each number to the nearest 10: ______
- Estimate 48 + 55 by rounding each number to the nearest 10: ______
- Estimate 79 − 65 by rounding each number to the nearest 10: ______
- Estimate 65 + 34 by rounding each number to the nearest 10: ______
- Estimate 33 − 39 by rounding each number to the nearest 10: ______
- Estimate 76 − 68 by rounding each number to the nearest 10: ______
- Estimate 81 − 81 by rounding each number to the nearest 10: ______
- Estimate 24 + 31 by rounding each number to the nearest 10: ______
- Estimate 70 − 80 by rounding each number to the nearest 10: ______
- Estimate 58 + 22 by rounding each number to the nearest 10: ______
- Estimate 47 + 63 by rounding each number to the nearest 10: ______
- Estimate 45 − 39 by rounding each number to the nearest 10: ______
- Estimate 35 − 58 by rounding each number to the nearest 10: ______
- Estimate 62 − 44 by rounding each number to the nearest 10: ______
- Estimate 87 − 42 by rounding each number to the nearest 10: ______