Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 66 + 31 by rounding each number to the nearest 10: ______
- Estimate 64 + 38 by rounding each number to the nearest 10: ______
- Estimate 22 + 21 by rounding each number to the nearest 10: ______
- Estimate 27 − 88 by rounding each number to the nearest 10: ______
- Estimate 57 − 64 by rounding each number to the nearest 10: ______
- Estimate 84 − 88 by rounding each number to the nearest 10: ______
- Estimate 24 + 45 by rounding each number to the nearest 10: ______
- Estimate 80 − 68 by rounding each number to the nearest 10: ______
- Estimate 31 + 35 by rounding each number to the nearest 10: ______
- Estimate 60 + 29 by rounding each number to the nearest 10: ______
- Estimate 24 + 70 by rounding each number to the nearest 10: ______
- Estimate 83 + 37 by rounding each number to the nearest 10: ______
- Estimate 65 + 66 by rounding each number to the nearest 10: ______
- Estimate 26 + 24 by rounding each number to the nearest 10: ______
- Estimate 49 − 30 by rounding each number to the nearest 10: ______
- Estimate 39 + 53 by rounding each number to the nearest 10: ______
- Estimate 24 − 63 by rounding each number to the nearest 10: ______
- Estimate 58 − 62 by rounding each number to the nearest 10: ______
- Estimate 47 + 65 by rounding each number to the nearest 10: ______
- Estimate 61 + 57 by rounding each number to the nearest 10: ______