Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 45 − 43 by rounding each number to the nearest 10: ______
- Estimate 40 − 61 by rounding each number to the nearest 10: ______
- Estimate 34 − 35 by rounding each number to the nearest 10: ______
- Estimate 64 − 49 by rounding each number to the nearest 10: ______
- Estimate 86 − 42 by rounding each number to the nearest 10: ______
- Estimate 71 + 44 by rounding each number to the nearest 10: ______
- Estimate 82 − 58 by rounding each number to the nearest 10: ______
- Estimate 62 + 55 by rounding each number to the nearest 10: ______
- Estimate 53 − 77 by rounding each number to the nearest 10: ______
- Estimate 76 − 26 by rounding each number to the nearest 10: ______
- Estimate 34 + 34 by rounding each number to the nearest 10: ______
- Estimate 32 − 87 by rounding each number to the nearest 10: ______
- Estimate 57 − 37 by rounding each number to the nearest 10: ______
- Estimate 22 − 34 by rounding each number to the nearest 10: ______
- Estimate 53 + 31 by rounding each number to the nearest 10: ______
- Estimate 25 + 31 by rounding each number to the nearest 10: ______
- Estimate 47 + 46 by rounding each number to the nearest 10: ______
- Estimate 39 + 48 by rounding each number to the nearest 10: ______
- Estimate 81 + 61 by rounding each number to the nearest 10: ______
- Estimate 80 + 74 by rounding each number to the nearest 10: ______