Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 21 − 22 by rounding each number to the nearest 10: ______
- Estimate 64 − 70 by rounding each number to the nearest 10: ______
- Estimate 52 − 58 by rounding each number to the nearest 10: ______
- Estimate 75 + 76 by rounding each number to the nearest 10: ______
- Estimate 70 + 37 by rounding each number to the nearest 10: ______
- Estimate 86 + 39 by rounding each number to the nearest 10: ______
- Estimate 38 + 24 by rounding each number to the nearest 10: ______
- Estimate 24 − 27 by rounding each number to the nearest 10: ______
- Estimate 86 − 26 by rounding each number to the nearest 10: ______
- Estimate 25 + 35 by rounding each number to the nearest 10: ______
- Estimate 21 − 72 by rounding each number to the nearest 10: ______
- Estimate 74 − 77 by rounding each number to the nearest 10: ______
- Estimate 71 − 75 by rounding each number to the nearest 10: ______
- Estimate 72 − 51 by rounding each number to the nearest 10: ______
- Estimate 84 − 66 by rounding each number to the nearest 10: ______
- Estimate 80 + 48 by rounding each number to the nearest 10: ______
- Estimate 32 − 79 by rounding each number to the nearest 10: ______
- Estimate 68 − 55 by rounding each number to the nearest 10: ______
- Estimate 60 − 80 by rounding each number to the nearest 10: ______
- Estimate 37 − 60 by rounding each number to the nearest 10: ______