Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 79 + 76 by rounding each number to the nearest 10: ______
- Estimate 64 + 68 by rounding each number to the nearest 10: ______
- Estimate 58 + 87 by rounding each number to the nearest 10: ______
- Estimate 77 − 49 by rounding each number to the nearest 10: ______
- Estimate 66 + 43 by rounding each number to the nearest 10: ______
- Estimate 21 + 40 by rounding each number to the nearest 10: ______
- Estimate 26 + 68 by rounding each number to the nearest 10: ______
- Estimate 39 − 88 by rounding each number to the nearest 10: ______
- Estimate 76 − 52 by rounding each number to the nearest 10: ______
- Estimate 73 − 23 by rounding each number to the nearest 10: ______
- Estimate 86 − 78 by rounding each number to the nearest 10: ______
- Estimate 56 + 22 by rounding each number to the nearest 10: ______
- Estimate 47 + 88 by rounding each number to the nearest 10: ______
- Estimate 77 − 62 by rounding each number to the nearest 10: ______
- Estimate 88 − 33 by rounding each number to the nearest 10: ______
- Estimate 60 − 81 by rounding each number to the nearest 10: ______
- Estimate 61 + 77 by rounding each number to the nearest 10: ______
- Estimate 25 + 40 by rounding each number to the nearest 10: ______
- Estimate 88 + 86 by rounding each number to the nearest 10: ______
- Estimate 36 − 40 by rounding each number to the nearest 10: ______