Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 30 − 63 by rounding each number to the nearest 10: ______
- Estimate 31 − 79 by rounding each number to the nearest 10: ______
- Estimate 81 − 70 by rounding each number to the nearest 10: ______
- Estimate 51 + 71 by rounding each number to the nearest 10: ______
- Estimate 84 − 76 by rounding each number to the nearest 10: ______
- Estimate 36 − 32 by rounding each number to the nearest 10: ______
- Estimate 47 − 34 by rounding each number to the nearest 10: ______
- Estimate 75 + 57 by rounding each number to the nearest 10: ______
- Estimate 23 + 30 by rounding each number to the nearest 10: ______
- Estimate 34 − 88 by rounding each number to the nearest 10: ______
- Estimate 89 − 58 by rounding each number to the nearest 10: ______
- Estimate 67 + 69 by rounding each number to the nearest 10: ______
- Estimate 88 + 65 by rounding each number to the nearest 10: ______
- Estimate 65 − 74 by rounding each number to the nearest 10: ______
- Estimate 87 + 61 by rounding each number to the nearest 10: ______
- Estimate 89 + 87 by rounding each number to the nearest 10: ______
- Estimate 81 − 72 by rounding each number to the nearest 10: ______
- Estimate 51 + 74 by rounding each number to the nearest 10: ______
- Estimate 30 − 26 by rounding each number to the nearest 10: ______
- Estimate 82 + 56 by rounding each number to the nearest 10: ______