Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 60 − 30 by rounding each number to the nearest 10: ______
- Estimate 63 − 77 by rounding each number to the nearest 10: ______
- Estimate 37 − 78 by rounding each number to the nearest 10: ______
- Estimate 88 − 33 by rounding each number to the nearest 10: ______
- Estimate 51 + 86 by rounding each number to the nearest 10: ______
- Estimate 40 + 86 by rounding each number to the nearest 10: ______
- Estimate 83 + 60 by rounding each number to the nearest 10: ______
- Estimate 66 − 61 by rounding each number to the nearest 10: ______
- Estimate 73 − 89 by rounding each number to the nearest 10: ______
- Estimate 46 − 24 by rounding each number to the nearest 10: ______
- Estimate 27 + 81 by rounding each number to the nearest 10: ______
- Estimate 64 + 73 by rounding each number to the nearest 10: ______
- Estimate 49 + 36 by rounding each number to the nearest 10: ______
- Estimate 34 + 33 by rounding each number to the nearest 10: ______
- Estimate 52 − 81 by rounding each number to the nearest 10: ______
- Estimate 27 − 39 by rounding each number to the nearest 10: ______
- Estimate 87 − 82 by rounding each number to the nearest 10: ______
- Estimate 58 − 80 by rounding each number to the nearest 10: ______
- Estimate 27 − 23 by rounding each number to the nearest 10: ______
- Estimate 26 + 52 by rounding each number to the nearest 10: ______