Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 52 + 46 by rounding each number to the nearest 10: ______
- Estimate 51 − 27 by rounding each number to the nearest 10: ______
- Estimate 41 − 59 by rounding each number to the nearest 10: ______
- Estimate 71 − 69 by rounding each number to the nearest 10: ______
- Estimate 83 + 85 by rounding each number to the nearest 10: ______
- Estimate 56 + 46 by rounding each number to the nearest 10: ______
- Estimate 74 − 34 by rounding each number to the nearest 10: ______
- Estimate 66 − 40 by rounding each number to the nearest 10: ______
- Estimate 88 − 89 by rounding each number to the nearest 10: ______
- Estimate 51 − 78 by rounding each number to the nearest 10: ______
- Estimate 58 − 32 by rounding each number to the nearest 10: ______
- Estimate 61 − 35 by rounding each number to the nearest 10: ______
- Estimate 46 − 43 by rounding each number to the nearest 10: ______
- Estimate 81 + 77 by rounding each number to the nearest 10: ______
- Estimate 69 + 71 by rounding each number to the nearest 10: ______
- Estimate 50 − 58 by rounding each number to the nearest 10: ______
- Estimate 74 − 35 by rounding each number to the nearest 10: ______
- Estimate 62 − 31 by rounding each number to the nearest 10: ______
- Estimate 31 + 70 by rounding each number to the nearest 10: ______
- Estimate 87 + 81 by rounding each number to the nearest 10: ______