Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 61 + 48 by rounding each number to the nearest 10: ______
- Estimate 30 + 36 by rounding each number to the nearest 10: ______
- Estimate 82 − 63 by rounding each number to the nearest 10: ______
- Estimate 76 + 86 by rounding each number to the nearest 10: ______
- Estimate 25 + 49 by rounding each number to the nearest 10: ______
- Estimate 54 + 52 by rounding each number to the nearest 10: ______
- Estimate 89 − 34 by rounding each number to the nearest 10: ______
- Estimate 66 + 72 by rounding each number to the nearest 10: ______
- Estimate 36 + 48 by rounding each number to the nearest 10: ______
- Estimate 85 + 84 by rounding each number to the nearest 10: ______
- Estimate 63 − 55 by rounding each number to the nearest 10: ______
- Estimate 71 + 42 by rounding each number to the nearest 10: ______
- Estimate 62 + 77 by rounding each number to the nearest 10: ______
- Estimate 62 − 26 by rounding each number to the nearest 10: ______
- Estimate 48 + 41 by rounding each number to the nearest 10: ______
- Estimate 41 − 76 by rounding each number to the nearest 10: ______
- Estimate 64 + 32 by rounding each number to the nearest 10: ______
- Estimate 44 + 81 by rounding each number to the nearest 10: ______
- Estimate 24 − 35 by rounding each number to the nearest 10: ______
- Estimate 65 − 62 by rounding each number to the nearest 10: ______