Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 54 + 58 by rounding each number to the nearest 10: ______
- Estimate 68 + 22 by rounding each number to the nearest 10: ______
- Estimate 45 − 31 by rounding each number to the nearest 10: ______
- Estimate 49 + 21 by rounding each number to the nearest 10: ______
- Estimate 89 − 62 by rounding each number to the nearest 10: ______
- Estimate 25 − 53 by rounding each number to the nearest 10: ______
- Estimate 54 + 38 by rounding each number to the nearest 10: ______
- Estimate 71 + 25 by rounding each number to the nearest 10: ______
- Estimate 79 + 58 by rounding each number to the nearest 10: ______
- Estimate 85 − 49 by rounding each number to the nearest 10: ______
- Estimate 47 − 47 by rounding each number to the nearest 10: ______
- Estimate 61 − 32 by rounding each number to the nearest 10: ______
- Estimate 23 + 77 by rounding each number to the nearest 10: ______
- Estimate 52 − 59 by rounding each number to the nearest 10: ______
- Estimate 64 − 69 by rounding each number to the nearest 10: ______
- Estimate 45 + 74 by rounding each number to the nearest 10: ______
- Estimate 66 + 57 by rounding each number to the nearest 10: ______
- Estimate 38 + 52 by rounding each number to the nearest 10: ______
- Estimate 80 + 29 by rounding each number to the nearest 10: ______
- Estimate 21 − 85 by rounding each number to the nearest 10: ______