Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 43 − 65 by rounding each number to the nearest 10: ______
- Estimate 31 + 22 by rounding each number to the nearest 10: ______
- Estimate 52 + 43 by rounding each number to the nearest 10: ______
- Estimate 66 + 53 by rounding each number to the nearest 10: ______
- Estimate 44 − 34 by rounding each number to the nearest 10: ______
- Estimate 86 + 85 by rounding each number to the nearest 10: ______
- Estimate 82 − 28 by rounding each number to the nearest 10: ______
- Estimate 51 − 47 by rounding each number to the nearest 10: ______
- Estimate 89 − 85 by rounding each number to the nearest 10: ______
- Estimate 74 + 89 by rounding each number to the nearest 10: ______
- Estimate 49 − 31 by rounding each number to the nearest 10: ______
- Estimate 38 + 31 by rounding each number to the nearest 10: ______
- Estimate 40 − 76 by rounding each number to the nearest 10: ______
- Estimate 88 + 82 by rounding each number to the nearest 10: ______
- Estimate 41 − 36 by rounding each number to the nearest 10: ______
- Estimate 21 − 31 by rounding each number to the nearest 10: ______
- Estimate 38 − 85 by rounding each number to the nearest 10: ______
- Estimate 58 + 56 by rounding each number to the nearest 10: ______
- Estimate 67 − 35 by rounding each number to the nearest 10: ______
- Estimate 68 − 42 by rounding each number to the nearest 10: ______