Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 43 − 34 by rounding each number to the nearest 10: ______
- Estimate 80 − 64 by rounding each number to the nearest 10: ______
- Estimate 31 − 31 by rounding each number to the nearest 10: ______
- Estimate 70 − 49 by rounding each number to the nearest 10: ______
- Estimate 48 − 39 by rounding each number to the nearest 10: ______
- Estimate 54 + 58 by rounding each number to the nearest 10: ______
- Estimate 82 − 89 by rounding each number to the nearest 10: ______
- Estimate 62 − 71 by rounding each number to the nearest 10: ______
- Estimate 89 − 88 by rounding each number to the nearest 10: ______
- Estimate 27 + 69 by rounding each number to the nearest 10: ______
- Estimate 52 + 50 by rounding each number to the nearest 10: ______
- Estimate 27 − 25 by rounding each number to the nearest 10: ______
- Estimate 61 − 26 by rounding each number to the nearest 10: ______
- Estimate 83 + 25 by rounding each number to the nearest 10: ______
- Estimate 41 + 73 by rounding each number to the nearest 10: ______
- Estimate 38 − 63 by rounding each number to the nearest 10: ______
- Estimate 77 − 79 by rounding each number to the nearest 10: ______
- Estimate 82 + 28 by rounding each number to the nearest 10: ______
- Estimate 21 − 82 by rounding each number to the nearest 10: ______
- Estimate 53 + 70 by rounding each number to the nearest 10: ______