Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 72 + 25 by rounding each number to the nearest 10: ______
- Estimate 40 − 77 by rounding each number to the nearest 10: ______
- Estimate 79 + 86 by rounding each number to the nearest 10: ______
- Estimate 52 − 54 by rounding each number to the nearest 10: ______
- Estimate 86 − 53 by rounding each number to the nearest 10: ______
- Estimate 71 + 84 by rounding each number to the nearest 10: ______
- Estimate 35 − 34 by rounding each number to the nearest 10: ______
- Estimate 51 + 72 by rounding each number to the nearest 10: ______
- Estimate 60 + 39 by rounding each number to the nearest 10: ______
- Estimate 81 − 39 by rounding each number to the nearest 10: ______
- Estimate 74 + 73 by rounding each number to the nearest 10: ______
- Estimate 62 − 37 by rounding each number to the nearest 10: ______
- Estimate 46 + 43 by rounding each number to the nearest 10: ______
- Estimate 61 + 77 by rounding each number to the nearest 10: ______
- Estimate 65 + 83 by rounding each number to the nearest 10: ______
- Estimate 27 + 30 by rounding each number to the nearest 10: ______
- Estimate 37 − 88 by rounding each number to the nearest 10: ______
- Estimate 76 − 29 by rounding each number to the nearest 10: ______
- Estimate 30 + 36 by rounding each number to the nearest 10: ______
- Estimate 59 − 89 by rounding each number to the nearest 10: ______