Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 82 + 87 by rounding each number to the nearest 10: ______
- Estimate 89 + 37 by rounding each number to the nearest 10: ______
- Estimate 89 + 61 by rounding each number to the nearest 10: ______
- Estimate 39 − 61 by rounding each number to the nearest 10: ______
- Estimate 85 − 21 by rounding each number to the nearest 10: ______
- Estimate 34 − 22 by rounding each number to the nearest 10: ______
- Estimate 32 − 85 by rounding each number to the nearest 10: ______
- Estimate 57 + 44 by rounding each number to the nearest 10: ______
- Estimate 62 + 58 by rounding each number to the nearest 10: ______
- Estimate 45 + 69 by rounding each number to the nearest 10: ______
- Estimate 37 − 54 by rounding each number to the nearest 10: ______
- Estimate 22 − 43 by rounding each number to the nearest 10: ______
- Estimate 70 − 47 by rounding each number to the nearest 10: ______
- Estimate 74 − 76 by rounding each number to the nearest 10: ______
- Estimate 64 − 79 by rounding each number to the nearest 10: ______
- Estimate 59 − 84 by rounding each number to the nearest 10: ______
- Estimate 52 + 37 by rounding each number to the nearest 10: ______
- Estimate 39 − 24 by rounding each number to the nearest 10: ______
- Estimate 60 − 74 by rounding each number to the nearest 10: ______
- Estimate 61 − 33 by rounding each number to the nearest 10: ______