Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 55 + 43 by rounding each number to the nearest 10: ______
- Estimate 82 + 23 by rounding each number to the nearest 10: ______
- Estimate 76 − 39 by rounding each number to the nearest 10: ______
- Estimate 32 − 71 by rounding each number to the nearest 10: ______
- Estimate 45 + 54 by rounding each number to the nearest 10: ______
- Estimate 72 − 37 by rounding each number to the nearest 10: ______
- Estimate 41 + 72 by rounding each number to the nearest 10: ______
- Estimate 56 + 80 by rounding each number to the nearest 10: ______
- Estimate 32 + 38 by rounding each number to the nearest 10: ______
- Estimate 41 + 55 by rounding each number to the nearest 10: ______
- Estimate 89 − 42 by rounding each number to the nearest 10: ______
- Estimate 81 − 72 by rounding each number to the nearest 10: ______
- Estimate 52 + 33 by rounding each number to the nearest 10: ______
- Estimate 30 − 89 by rounding each number to the nearest 10: ______
- Estimate 81 + 26 by rounding each number to the nearest 10: ______
- Estimate 70 − 74 by rounding each number to the nearest 10: ______
- Estimate 88 + 27 by rounding each number to the nearest 10: ______
- Estimate 42 + 80 by rounding each number to the nearest 10: ______
- Estimate 89 − 50 by rounding each number to the nearest 10: ______
- Estimate 46 + 55 by rounding each number to the nearest 10: ______