Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 63 − 58 by rounding each number to the nearest 10: ______
- Estimate 28 − 62 by rounding each number to the nearest 10: ______
- Estimate 66 − 43 by rounding each number to the nearest 10: ______
- Estimate 83 − 71 by rounding each number to the nearest 10: ______
- Estimate 34 − 48 by rounding each number to the nearest 10: ______
- Estimate 52 − 36 by rounding each number to the nearest 10: ______
- Estimate 76 + 28 by rounding each number to the nearest 10: ______
- Estimate 25 + 81 by rounding each number to the nearest 10: ______
- Estimate 65 − 33 by rounding each number to the nearest 10: ______
- Estimate 81 − 29 by rounding each number to the nearest 10: ______
- Estimate 30 − 43 by rounding each number to the nearest 10: ______
- Estimate 89 − 36 by rounding each number to the nearest 10: ______
- Estimate 66 − 35 by rounding each number to the nearest 10: ______
- Estimate 30 − 65 by rounding each number to the nearest 10: ______
- Estimate 26 + 56 by rounding each number to the nearest 10: ______
- Estimate 55 + 64 by rounding each number to the nearest 10: ______
- Estimate 72 + 35 by rounding each number to the nearest 10: ______
- Estimate 66 + 21 by rounding each number to the nearest 10: ______
- Estimate 60 − 56 by rounding each number to the nearest 10: ______
- Estimate 72 − 32 by rounding each number to the nearest 10: ______