Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 76 − 43 by rounding each number to the nearest 10: ______
- Estimate 44 + 74 by rounding each number to the nearest 10: ______
- Estimate 59 − 58 by rounding each number to the nearest 10: ______
- Estimate 81 − 84 by rounding each number to the nearest 10: ______
- Estimate 52 + 66 by rounding each number to the nearest 10: ______
- Estimate 37 + 73 by rounding each number to the nearest 10: ______
- Estimate 47 + 34 by rounding each number to the nearest 10: ______
- Estimate 57 − 56 by rounding each number to the nearest 10: ______
- Estimate 38 + 30 by rounding each number to the nearest 10: ______
- Estimate 66 + 53 by rounding each number to the nearest 10: ______
- Estimate 59 + 68 by rounding each number to the nearest 10: ______
- Estimate 47 − 39 by rounding each number to the nearest 10: ______
- Estimate 26 + 27 by rounding each number to the nearest 10: ______
- Estimate 53 − 82 by rounding each number to the nearest 10: ______
- Estimate 46 + 21 by rounding each number to the nearest 10: ______
- Estimate 22 − 71 by rounding each number to the nearest 10: ______
- Estimate 68 + 44 by rounding each number to the nearest 10: ______
- Estimate 65 + 51 by rounding each number to the nearest 10: ______
- Estimate 89 − 72 by rounding each number to the nearest 10: ______
- Estimate 21 + 63 by rounding each number to the nearest 10: ______