Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 38 + 32 by rounding each number to the nearest 10: ______
- Estimate 70 − 86 by rounding each number to the nearest 10: ______
- Estimate 75 + 61 by rounding each number to the nearest 10: ______
- Estimate 48 − 70 by rounding each number to the nearest 10: ______
- Estimate 75 − 52 by rounding each number to the nearest 10: ______
- Estimate 57 − 38 by rounding each number to the nearest 10: ______
- Estimate 31 − 70 by rounding each number to the nearest 10: ______
- Estimate 89 − 70 by rounding each number to the nearest 10: ______
- Estimate 67 + 71 by rounding each number to the nearest 10: ______
- Estimate 33 + 83 by rounding each number to the nearest 10: ______
- Estimate 37 + 80 by rounding each number to the nearest 10: ______
- Estimate 89 − 53 by rounding each number to the nearest 10: ______
- Estimate 75 + 67 by rounding each number to the nearest 10: ______
- Estimate 74 − 49 by rounding each number to the nearest 10: ______
- Estimate 57 + 29 by rounding each number to the nearest 10: ______
- Estimate 48 − 58 by rounding each number to the nearest 10: ______
- Estimate 31 − 45 by rounding each number to the nearest 10: ______
- Estimate 30 − 48 by rounding each number to the nearest 10: ______
- Estimate 77 − 57 by rounding each number to the nearest 10: ______
- Estimate 86 + 40 by rounding each number to the nearest 10: ______