Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 89 − 55 by rounding each number to the nearest 10: ______
- Estimate 66 − 36 by rounding each number to the nearest 10: ______
- Estimate 38 + 82 by rounding each number to the nearest 10: ______
- Estimate 23 + 62 by rounding each number to the nearest 10: ______
- Estimate 63 + 61 by rounding each number to the nearest 10: ______
- Estimate 24 + 87 by rounding each number to the nearest 10: ______
- Estimate 27 − 84 by rounding each number to the nearest 10: ______
- Estimate 88 + 27 by rounding each number to the nearest 10: ______
- Estimate 71 − 45 by rounding each number to the nearest 10: ______
- Estimate 52 + 79 by rounding each number to the nearest 10: ______
- Estimate 46 + 62 by rounding each number to the nearest 10: ______
- Estimate 62 + 86 by rounding each number to the nearest 10: ______
- Estimate 66 + 39 by rounding each number to the nearest 10: ______
- Estimate 62 + 22 by rounding each number to the nearest 10: ______
- Estimate 63 + 31 by rounding each number to the nearest 10: ______
- Estimate 31 − 69 by rounding each number to the nearest 10: ______
- Estimate 74 − 82 by rounding each number to the nearest 10: ______
- Estimate 84 − 83 by rounding each number to the nearest 10: ______
- Estimate 51 − 40 by rounding each number to the nearest 10: ______
- Estimate 47 − 54 by rounding each number to the nearest 10: ______