Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 49 + 28 by rounding each number to the nearest 10: ______
- Estimate 56 + 54 by rounding each number to the nearest 10: ______
- Estimate 84 + 68 by rounding each number to the nearest 10: ______
- Estimate 86 + 40 by rounding each number to the nearest 10: ______
- Estimate 26 − 27 by rounding each number to the nearest 10: ______
- Estimate 40 + 62 by rounding each number to the nearest 10: ______
- Estimate 23 + 87 by rounding each number to the nearest 10: ______
- Estimate 78 − 33 by rounding each number to the nearest 10: ______
- Estimate 55 + 89 by rounding each number to the nearest 10: ______
- Estimate 65 + 43 by rounding each number to the nearest 10: ______
- Estimate 78 − 86 by rounding each number to the nearest 10: ______
- Estimate 77 + 43 by rounding each number to the nearest 10: ______
- Estimate 39 + 24 by rounding each number to the nearest 10: ______
- Estimate 81 − 40 by rounding each number to the nearest 10: ______
- Estimate 37 − 70 by rounding each number to the nearest 10: ______
- Estimate 28 − 27 by rounding each number to the nearest 10: ______
- Estimate 59 + 86 by rounding each number to the nearest 10: ______
- Estimate 62 + 23 by rounding each number to the nearest 10: ______
- Estimate 54 + 49 by rounding each number to the nearest 10: ______
- Estimate 73 + 85 by rounding each number to the nearest 10: ______