Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 55 + 40 by rounding each number to the nearest 10: ______
- Estimate 50 − 56 by rounding each number to the nearest 10: ______
- Estimate 81 + 60 by rounding each number to the nearest 10: ______
- Estimate 70 + 32 by rounding each number to the nearest 10: ______
- Estimate 70 − 86 by rounding each number to the nearest 10: ______
- Estimate 29 − 52 by rounding each number to the nearest 10: ______
- Estimate 42 + 32 by rounding each number to the nearest 10: ______
- Estimate 58 + 29 by rounding each number to the nearest 10: ______
- Estimate 22 − 66 by rounding each number to the nearest 10: ______
- Estimate 89 − 40 by rounding each number to the nearest 10: ______
- Estimate 31 + 70 by rounding each number to the nearest 10: ______
- Estimate 81 + 78 by rounding each number to the nearest 10: ______
- Estimate 55 − 64 by rounding each number to the nearest 10: ______
- Estimate 58 − 84 by rounding each number to the nearest 10: ______
- Estimate 24 − 81 by rounding each number to the nearest 10: ______
- Estimate 47 − 57 by rounding each number to the nearest 10: ______
- Estimate 82 + 86 by rounding each number to the nearest 10: ______
- Estimate 81 − 21 by rounding each number to the nearest 10: ______
- Estimate 44 + 46 by rounding each number to the nearest 10: ______
- Estimate 73 − 37 by rounding each number to the nearest 10: ______