Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 37 + 78 by rounding each number to the nearest 10: ______
- Estimate 84 + 87 by rounding each number to the nearest 10: ______
- Estimate 76 − 88 by rounding each number to the nearest 10: ______
- Estimate 53 − 78 by rounding each number to the nearest 10: ______
- Estimate 68 − 28 by rounding each number to the nearest 10: ______
- Estimate 54 − 65 by rounding each number to the nearest 10: ______
- Estimate 84 − 50 by rounding each number to the nearest 10: ______
- Estimate 54 − 57 by rounding each number to the nearest 10: ______
- Estimate 23 − 75 by rounding each number to the nearest 10: ______
- Estimate 41 − 52 by rounding each number to the nearest 10: ______
- Estimate 81 + 88 by rounding each number to the nearest 10: ______
- Estimate 26 + 40 by rounding each number to the nearest 10: ______
- Estimate 60 + 31 by rounding each number to the nearest 10: ______
- Estimate 68 − 22 by rounding each number to the nearest 10: ______
- Estimate 84 − 22 by rounding each number to the nearest 10: ______
- Estimate 63 + 37 by rounding each number to the nearest 10: ______
- Estimate 27 − 21 by rounding each number to the nearest 10: ______
- Estimate 74 − 70 by rounding each number to the nearest 10: ______
- Estimate 58 − 68 by rounding each number to the nearest 10: ______
- Estimate 68 + 62 by rounding each number to the nearest 10: ______