Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 52 − 29 by rounding each number to the nearest 10: ______
- Estimate 79 − 65 by rounding each number to the nearest 10: ______
- Estimate 53 + 21 by rounding each number to the nearest 10: ______
- Estimate 71 + 69 by rounding each number to the nearest 10: ______
- Estimate 52 − 41 by rounding each number to the nearest 10: ______
- Estimate 78 − 35 by rounding each number to the nearest 10: ______
- Estimate 69 − 76 by rounding each number to the nearest 10: ______
- Estimate 65 + 25 by rounding each number to the nearest 10: ______
- Estimate 67 − 32 by rounding each number to the nearest 10: ______
- Estimate 82 + 77 by rounding each number to the nearest 10: ______
- Estimate 31 + 80 by rounding each number to the nearest 10: ______
- Estimate 50 + 38 by rounding each number to the nearest 10: ______
- Estimate 69 − 61 by rounding each number to the nearest 10: ______
- Estimate 44 + 48 by rounding each number to the nearest 10: ______
- Estimate 70 + 80 by rounding each number to the nearest 10: ______
- Estimate 33 + 43 by rounding each number to the nearest 10: ______
- Estimate 81 + 39 by rounding each number to the nearest 10: ______
- Estimate 65 + 43 by rounding each number to the nearest 10: ______
- Estimate 77 − 26 by rounding each number to the nearest 10: ______
- Estimate 73 − 21 by rounding each number to the nearest 10: ______