Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 79 − 85 by rounding each number to the nearest 10: ______
- Estimate 43 + 51 by rounding each number to the nearest 10: ______
- Estimate 85 + 67 by rounding each number to the nearest 10: ______
- Estimate 26 − 85 by rounding each number to the nearest 10: ______
- Estimate 33 + 87 by rounding each number to the nearest 10: ______
- Estimate 57 − 59 by rounding each number to the nearest 10: ______
- Estimate 42 − 40 by rounding each number to the nearest 10: ______
- Estimate 29 − 40 by rounding each number to the nearest 10: ______
- Estimate 36 − 30 by rounding each number to the nearest 10: ______
- Estimate 58 − 42 by rounding each number to the nearest 10: ______
- Estimate 83 − 89 by rounding each number to the nearest 10: ______
- Estimate 60 + 86 by rounding each number to the nearest 10: ______
- Estimate 27 − 56 by rounding each number to the nearest 10: ______
- Estimate 46 − 57 by rounding each number to the nearest 10: ______
- Estimate 63 + 81 by rounding each number to the nearest 10: ______
- Estimate 70 + 42 by rounding each number to the nearest 10: ______
- Estimate 37 − 60 by rounding each number to the nearest 10: ______
- Estimate 33 − 66 by rounding each number to the nearest 10: ______
- Estimate 39 + 84 by rounding each number to the nearest 10: ______
- Estimate 37 + 40 by rounding each number to the nearest 10: ______