Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 88 + 72 by rounding each number to the nearest 10: ______
- Estimate 57 + 79 by rounding each number to the nearest 10: ______
- Estimate 74 − 48 by rounding each number to the nearest 10: ______
- Estimate 28 − 72 by rounding each number to the nearest 10: ______
- Estimate 38 − 27 by rounding each number to the nearest 10: ______
- Estimate 54 + 45 by rounding each number to the nearest 10: ______
- Estimate 86 − 85 by rounding each number to the nearest 10: ______
- Estimate 48 − 29 by rounding each number to the nearest 10: ______
- Estimate 29 + 61 by rounding each number to the nearest 10: ______
- Estimate 39 − 45 by rounding each number to the nearest 10: ______
- Estimate 55 + 31 by rounding each number to the nearest 10: ______
- Estimate 24 + 56 by rounding each number to the nearest 10: ______
- Estimate 84 + 74 by rounding each number to the nearest 10: ______
- Estimate 30 − 50 by rounding each number to the nearest 10: ______
- Estimate 84 + 24 by rounding each number to the nearest 10: ______
- Estimate 45 − 22 by rounding each number to the nearest 10: ______
- Estimate 53 + 66 by rounding each number to the nearest 10: ______
- Estimate 63 − 84 by rounding each number to the nearest 10: ______
- Estimate 58 + 34 by rounding each number to the nearest 10: ______
- Estimate 48 + 32 by rounding each number to the nearest 10: ______