Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 37 − 77 by rounding each number to the nearest 10: ______
- Estimate 49 + 51 by rounding each number to the nearest 10: ______
- Estimate 32 − 31 by rounding each number to the nearest 10: ______
- Estimate 55 + 84 by rounding each number to the nearest 10: ______
- Estimate 78 + 53 by rounding each number to the nearest 10: ______
- Estimate 87 + 47 by rounding each number to the nearest 10: ______
- Estimate 25 − 68 by rounding each number to the nearest 10: ______
- Estimate 86 − 76 by rounding each number to the nearest 10: ______
- Estimate 84 − 24 by rounding each number to the nearest 10: ______
- Estimate 31 − 83 by rounding each number to the nearest 10: ______
- Estimate 35 − 75 by rounding each number to the nearest 10: ______
- Estimate 54 − 81 by rounding each number to the nearest 10: ______
- Estimate 64 + 28 by rounding each number to the nearest 10: ______
- Estimate 30 − 30 by rounding each number to the nearest 10: ______
- Estimate 81 + 60 by rounding each number to the nearest 10: ______
- Estimate 75 + 80 by rounding each number to the nearest 10: ______
- Estimate 56 + 32 by rounding each number to the nearest 10: ______
- Estimate 51 − 55 by rounding each number to the nearest 10: ______
- Estimate 63 + 52 by rounding each number to the nearest 10: ______
- Estimate 54 − 89 by rounding each number to the nearest 10: ______