Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 51 + 78 by rounding each number to the nearest 10: ______
- Estimate 37 + 55 by rounding each number to the nearest 10: ______
- Estimate 41 − 73 by rounding each number to the nearest 10: ______
- Estimate 62 + 33 by rounding each number to the nearest 10: ______
- Estimate 33 + 48 by rounding each number to the nearest 10: ______
- Estimate 58 + 56 by rounding each number to the nearest 10: ______
- Estimate 49 + 68 by rounding each number to the nearest 10: ______
- Estimate 70 + 38 by rounding each number to the nearest 10: ______
- Estimate 31 − 89 by rounding each number to the nearest 10: ______
- Estimate 48 − 61 by rounding each number to the nearest 10: ______
- Estimate 38 − 28 by rounding each number to the nearest 10: ______
- Estimate 66 − 24 by rounding each number to the nearest 10: ______
- Estimate 22 − 52 by rounding each number to the nearest 10: ______
- Estimate 24 − 81 by rounding each number to the nearest 10: ______
- Estimate 30 + 22 by rounding each number to the nearest 10: ______
- Estimate 40 − 89 by rounding each number to the nearest 10: ______
- Estimate 24 − 51 by rounding each number to the nearest 10: ______
- Estimate 26 − 54 by rounding each number to the nearest 10: ______
- Estimate 38 − 53 by rounding each number to the nearest 10: ______
- Estimate 64 − 27 by rounding each number to the nearest 10: ______