Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 84 − 25 by rounding each number to the nearest 10: ______
- Estimate 59 − 72 by rounding each number to the nearest 10: ______
- Estimate 36 − 80 by rounding each number to the nearest 10: ______
- Estimate 34 − 33 by rounding each number to the nearest 10: ______
- Estimate 45 + 45 by rounding each number to the nearest 10: ______
- Estimate 45 − 72 by rounding each number to the nearest 10: ______
- Estimate 45 + 21 by rounding each number to the nearest 10: ______
- Estimate 81 − 35 by rounding each number to the nearest 10: ______
- Estimate 33 + 59 by rounding each number to the nearest 10: ______
- Estimate 85 + 64 by rounding each number to the nearest 10: ______
- Estimate 52 − 86 by rounding each number to the nearest 10: ______
- Estimate 47 + 66 by rounding each number to the nearest 10: ______
- Estimate 70 − 29 by rounding each number to the nearest 10: ______
- Estimate 35 − 64 by rounding each number to the nearest 10: ______
- Estimate 44 + 57 by rounding each number to the nearest 10: ______
- Estimate 66 − 27 by rounding each number to the nearest 10: ______
- Estimate 81 − 72 by rounding each number to the nearest 10: ______
- Estimate 69 − 80 by rounding each number to the nearest 10: ______
- Estimate 89 − 31 by rounding each number to the nearest 10: ______
- Estimate 78 + 22 by rounding each number to the nearest 10: ______