Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 24 + 23 by rounding each number to the nearest 10: ______
- Estimate 39 − 84 by rounding each number to the nearest 10: ______
- Estimate 41 − 81 by rounding each number to the nearest 10: ______
- Estimate 89 + 62 by rounding each number to the nearest 10: ______
- Estimate 79 + 48 by rounding each number to the nearest 10: ______
- Estimate 29 − 29 by rounding each number to the nearest 10: ______
- Estimate 49 + 54 by rounding each number to the nearest 10: ______
- Estimate 55 − 81 by rounding each number to the nearest 10: ______
- Estimate 41 + 79 by rounding each number to the nearest 10: ______
- Estimate 87 − 32 by rounding each number to the nearest 10: ______
- Estimate 62 + 88 by rounding each number to the nearest 10: ______
- Estimate 71 + 81 by rounding each number to the nearest 10: ______
- Estimate 31 − 24 by rounding each number to the nearest 10: ______
- Estimate 68 − 53 by rounding each number to the nearest 10: ______
- Estimate 64 − 27 by rounding each number to the nearest 10: ______
- Estimate 61 − 47 by rounding each number to the nearest 10: ______
- Estimate 87 + 67 by rounding each number to the nearest 10: ______
- Estimate 71 + 88 by rounding each number to the nearest 10: ______
- Estimate 43 − 39 by rounding each number to the nearest 10: ______
- Estimate 79 − 25 by rounding each number to the nearest 10: ______