Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 38 + 24 by rounding each number to the nearest 10: ______
- Estimate 84 + 33 by rounding each number to the nearest 10: ______
- Estimate 51 + 66 by rounding each number to the nearest 10: ______
- Estimate 60 + 81 by rounding each number to the nearest 10: ______
- Estimate 40 − 22 by rounding each number to the nearest 10: ______
- Estimate 66 + 59 by rounding each number to the nearest 10: ______
- Estimate 43 − 25 by rounding each number to the nearest 10: ______
- Estimate 26 − 72 by rounding each number to the nearest 10: ______
- Estimate 73 + 86 by rounding each number to the nearest 10: ______
- Estimate 49 + 27 by rounding each number to the nearest 10: ______
- Estimate 80 + 29 by rounding each number to the nearest 10: ______
- Estimate 66 + 62 by rounding each number to the nearest 10: ______
- Estimate 48 + 53 by rounding each number to the nearest 10: ______
- Estimate 52 − 36 by rounding each number to the nearest 10: ______
- Estimate 63 + 37 by rounding each number to the nearest 10: ______
- Estimate 71 − 70 by rounding each number to the nearest 10: ______
- Estimate 77 + 65 by rounding each number to the nearest 10: ______
- Estimate 55 + 64 by rounding each number to the nearest 10: ______
- Estimate 70 + 71 by rounding each number to the nearest 10: ______
- Estimate 71 − 78 by rounding each number to the nearest 10: ______