Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 49 − 55 by rounding each number to the nearest 10: ______
- Estimate 89 + 71 by rounding each number to the nearest 10: ______
- Estimate 89 + 37 by rounding each number to the nearest 10: ______
- Estimate 57 − 74 by rounding each number to the nearest 10: ______
- Estimate 65 + 35 by rounding each number to the nearest 10: ______
- Estimate 26 − 83 by rounding each number to the nearest 10: ______
- Estimate 55 + 59 by rounding each number to the nearest 10: ______
- Estimate 52 − 71 by rounding each number to the nearest 10: ______
- Estimate 36 + 66 by rounding each number to the nearest 10: ______
- Estimate 57 + 52 by rounding each number to the nearest 10: ______
- Estimate 52 − 39 by rounding each number to the nearest 10: ______
- Estimate 68 + 42 by rounding each number to the nearest 10: ______
- Estimate 52 − 33 by rounding each number to the nearest 10: ______
- Estimate 41 + 32 by rounding each number to the nearest 10: ______
- Estimate 41 − 82 by rounding each number to the nearest 10: ______
- Estimate 40 − 62 by rounding each number to the nearest 10: ______
- Estimate 68 + 68 by rounding each number to the nearest 10: ______
- Estimate 31 − 61 by rounding each number to the nearest 10: ______
- Estimate 54 − 64 by rounding each number to the nearest 10: ______
- Estimate 82 + 34 by rounding each number to the nearest 10: ______