Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 52 − 25 by rounding each number to the nearest 10: ______
- Estimate 48 − 40 by rounding each number to the nearest 10: ______
- Estimate 61 + 40 by rounding each number to the nearest 10: ______
- Estimate 36 − 45 by rounding each number to the nearest 10: ______
- Estimate 82 − 86 by rounding each number to the nearest 10: ______
- Estimate 81 + 66 by rounding each number to the nearest 10: ______
- Estimate 40 + 62 by rounding each number to the nearest 10: ______
- Estimate 41 + 71 by rounding each number to the nearest 10: ______
- Estimate 50 + 77 by rounding each number to the nearest 10: ______
- Estimate 59 − 85 by rounding each number to the nearest 10: ______
- Estimate 85 + 42 by rounding each number to the nearest 10: ______
- Estimate 61 − 33 by rounding each number to the nearest 10: ______
- Estimate 40 + 49 by rounding each number to the nearest 10: ______
- Estimate 45 − 67 by rounding each number to the nearest 10: ______
- Estimate 63 + 70 by rounding each number to the nearest 10: ______
- Estimate 40 − 37 by rounding each number to the nearest 10: ______
- Estimate 67 − 58 by rounding each number to the nearest 10: ______
- Estimate 77 − 56 by rounding each number to the nearest 10: ______
- Estimate 84 − 49 by rounding each number to the nearest 10: ______
- Estimate 78 + 38 by rounding each number to the nearest 10: ______