Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 53 + 37 by rounding each number to the nearest 10: ______
- Estimate 74 − 54 by rounding each number to the nearest 10: ______
- Estimate 78 − 49 by rounding each number to the nearest 10: ______
- Estimate 83 − 75 by rounding each number to the nearest 10: ______
- Estimate 21 − 67 by rounding each number to the nearest 10: ______
- Estimate 66 − 64 by rounding each number to the nearest 10: ______
- Estimate 41 − 81 by rounding each number to the nearest 10: ______
- Estimate 35 − 21 by rounding each number to the nearest 10: ______
- Estimate 22 + 88 by rounding each number to the nearest 10: ______
- Estimate 63 − 44 by rounding each number to the nearest 10: ______
- Estimate 36 − 40 by rounding each number to the nearest 10: ______
- Estimate 35 + 71 by rounding each number to the nearest 10: ______
- Estimate 85 + 49 by rounding each number to the nearest 10: ______
- Estimate 25 + 21 by rounding each number to the nearest 10: ______
- Estimate 32 − 67 by rounding each number to the nearest 10: ______
- Estimate 63 − 75 by rounding each number to the nearest 10: ______
- Estimate 52 + 41 by rounding each number to the nearest 10: ______
- Estimate 43 + 41 by rounding each number to the nearest 10: ______
- Estimate 74 + 45 by rounding each number to the nearest 10: ______
- Estimate 50 + 45 by rounding each number to the nearest 10: ______