Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 53 + 80 by rounding each number to the nearest 10: ______
- Estimate 37 − 71 by rounding each number to the nearest 10: ______
- Estimate 27 + 75 by rounding each number to the nearest 10: ______
- Estimate 88 + 39 by rounding each number to the nearest 10: ______
- Estimate 68 − 89 by rounding each number to the nearest 10: ______
- Estimate 83 + 85 by rounding each number to the nearest 10: ______
- Estimate 46 − 23 by rounding each number to the nearest 10: ______
- Estimate 69 + 70 by rounding each number to the nearest 10: ______
- Estimate 81 − 28 by rounding each number to the nearest 10: ______
- Estimate 84 − 84 by rounding each number to the nearest 10: ______
- Estimate 84 − 36 by rounding each number to the nearest 10: ______
- Estimate 64 + 51 by rounding each number to the nearest 10: ______
- Estimate 49 + 57 by rounding each number to the nearest 10: ______
- Estimate 23 + 25 by rounding each number to the nearest 10: ______
- Estimate 60 − 88 by rounding each number to the nearest 10: ______
- Estimate 76 + 71 by rounding each number to the nearest 10: ______
- Estimate 31 + 63 by rounding each number to the nearest 10: ______
- Estimate 72 + 27 by rounding each number to the nearest 10: ______
- Estimate 44 + 68 by rounding each number to the nearest 10: ______
- Estimate 79 − 43 by rounding each number to the nearest 10: ______