Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 77 + 62 by rounding each number to the nearest 10: ______
- Estimate 55 + 41 by rounding each number to the nearest 10: ______
- Estimate 23 + 37 by rounding each number to the nearest 10: ______
- Estimate 69 − 78 by rounding each number to the nearest 10: ______
- Estimate 55 − 86 by rounding each number to the nearest 10: ______
- Estimate 61 − 59 by rounding each number to the nearest 10: ______
- Estimate 79 + 31 by rounding each number to the nearest 10: ______
- Estimate 67 − 44 by rounding each number to the nearest 10: ______
- Estimate 57 − 88 by rounding each number to the nearest 10: ______
- Estimate 31 + 66 by rounding each number to the nearest 10: ______
- Estimate 22 + 36 by rounding each number to the nearest 10: ______
- Estimate 83 + 81 by rounding each number to the nearest 10: ______
- Estimate 69 + 78 by rounding each number to the nearest 10: ______
- Estimate 81 − 31 by rounding each number to the nearest 10: ______
- Estimate 65 − 61 by rounding each number to the nearest 10: ______
- Estimate 56 − 81 by rounding each number to the nearest 10: ______
- Estimate 87 − 40 by rounding each number to the nearest 10: ______
- Estimate 38 + 53 by rounding each number to the nearest 10: ______
- Estimate 66 + 33 by rounding each number to the nearest 10: ______
- Estimate 83 − 21 by rounding each number to the nearest 10: ______