Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 − 33 by rounding each number to the nearest 10: ______
- Estimate 35 + 67 by rounding each number to the nearest 10: ______
- Estimate 38 + 66 by rounding each number to the nearest 10: ______
- Estimate 63 − 30 by rounding each number to the nearest 10: ______
- Estimate 78 + 77 by rounding each number to the nearest 10: ______
- Estimate 27 − 52 by rounding each number to the nearest 10: ______
- Estimate 89 − 32 by rounding each number to the nearest 10: ______
- Estimate 39 − 29 by rounding each number to the nearest 10: ______
- Estimate 66 − 22 by rounding each number to the nearest 10: ______
- Estimate 27 + 30 by rounding each number to the nearest 10: ______
- Estimate 25 + 82 by rounding each number to the nearest 10: ______
- Estimate 37 − 39 by rounding each number to the nearest 10: ______
- Estimate 59 + 80 by rounding each number to the nearest 10: ______
- Estimate 74 + 82 by rounding each number to the nearest 10: ______
- Estimate 33 + 32 by rounding each number to the nearest 10: ______
- Estimate 38 − 81 by rounding each number to the nearest 10: ______
- Estimate 57 − 86 by rounding each number to the nearest 10: ______
- Estimate 56 − 46 by rounding each number to the nearest 10: ______
- Estimate 84 − 42 by rounding each number to the nearest 10: ______
- Estimate 66 − 48 by rounding each number to the nearest 10: ______