Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 61 + 72 by rounding each number to the nearest 10: ______
- Estimate 51 + 71 by rounding each number to the nearest 10: ______
- Estimate 47 + 87 by rounding each number to the nearest 10: ______
- Estimate 86 + 44 by rounding each number to the nearest 10: ______
- Estimate 57 − 76 by rounding each number to the nearest 10: ______
- Estimate 23 + 44 by rounding each number to the nearest 10: ______
- Estimate 46 + 75 by rounding each number to the nearest 10: ______
- Estimate 88 + 23 by rounding each number to the nearest 10: ______
- Estimate 85 + 22 by rounding each number to the nearest 10: ______
- Estimate 28 + 35 by rounding each number to the nearest 10: ______
- Estimate 70 − 82 by rounding each number to the nearest 10: ______
- Estimate 86 + 57 by rounding each number to the nearest 10: ______
- Estimate 31 − 83 by rounding each number to the nearest 10: ______
- Estimate 39 + 56 by rounding each number to the nearest 10: ______
- Estimate 50 + 88 by rounding each number to the nearest 10: ______
- Estimate 63 + 33 by rounding each number to the nearest 10: ______
- Estimate 75 + 21 by rounding each number to the nearest 10: ______
- Estimate 55 + 75 by rounding each number to the nearest 10: ______
- Estimate 51 + 84 by rounding each number to the nearest 10: ______
- Estimate 67 + 70 by rounding each number to the nearest 10: ______