Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 63 − 30 by rounding each number to the nearest 10: ______
- Estimate 84 + 42 by rounding each number to the nearest 10: ______
- Estimate 44 − 51 by rounding each number to the nearest 10: ______
- Estimate 84 + 39 by rounding each number to the nearest 10: ______
- Estimate 42 − 55 by rounding each number to the nearest 10: ______
- Estimate 31 − 36 by rounding each number to the nearest 10: ______
- Estimate 70 + 44 by rounding each number to the nearest 10: ______
- Estimate 85 − 36 by rounding each number to the nearest 10: ______
- Estimate 27 + 22 by rounding each number to the nearest 10: ______
- Estimate 66 − 65 by rounding each number to the nearest 10: ______
- Estimate 85 − 72 by rounding each number to the nearest 10: ______
- Estimate 89 − 59 by rounding each number to the nearest 10: ______
- Estimate 56 − 55 by rounding each number to the nearest 10: ______
- Estimate 61 − 75 by rounding each number to the nearest 10: ______
- Estimate 81 − 42 by rounding each number to the nearest 10: ______
- Estimate 65 − 27 by rounding each number to the nearest 10: ______
- Estimate 46 + 75 by rounding each number to the nearest 10: ______
- Estimate 26 − 33 by rounding each number to the nearest 10: ______
- Estimate 44 − 51 by rounding each number to the nearest 10: ______
- Estimate 67 + 72 by rounding each number to the nearest 10: ______