Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 62 − 84 by rounding each number to the nearest 10: ______
- Estimate 81 + 40 by rounding each number to the nearest 10: ______
- Estimate 58 + 43 by rounding each number to the nearest 10: ______
- Estimate 39 − 27 by rounding each number to the nearest 10: ______
- Estimate 45 + 57 by rounding each number to the nearest 10: ______
- Estimate 83 + 42 by rounding each number to the nearest 10: ______
- Estimate 49 + 41 by rounding each number to the nearest 10: ______
- Estimate 80 + 61 by rounding each number to the nearest 10: ______
- Estimate 40 − 29 by rounding each number to the nearest 10: ______
- Estimate 28 − 74 by rounding each number to the nearest 10: ______
- Estimate 33 − 61 by rounding each number to the nearest 10: ______
- Estimate 81 − 46 by rounding each number to the nearest 10: ______
- Estimate 35 + 81 by rounding each number to the nearest 10: ______
- Estimate 32 + 73 by rounding each number to the nearest 10: ______
- Estimate 57 + 38 by rounding each number to the nearest 10: ______
- Estimate 67 − 82 by rounding each number to the nearest 10: ______
- Estimate 43 + 22 by rounding each number to the nearest 10: ______
- Estimate 54 + 69 by rounding each number to the nearest 10: ______
- Estimate 38 − 30 by rounding each number to the nearest 10: ______
- Estimate 71 + 28 by rounding each number to the nearest 10: ______