Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 81 + 31 by rounding each number to the nearest 10: ______
- Estimate 41 − 59 by rounding each number to the nearest 10: ______
- Estimate 50 + 53 by rounding each number to the nearest 10: ______
- Estimate 86 + 62 by rounding each number to the nearest 10: ______
- Estimate 77 + 55 by rounding each number to the nearest 10: ______
- Estimate 53 + 69 by rounding each number to the nearest 10: ______
- Estimate 71 − 42 by rounding each number to the nearest 10: ______
- Estimate 26 − 77 by rounding each number to the nearest 10: ______
- Estimate 66 + 23 by rounding each number to the nearest 10: ______
- Estimate 52 + 59 by rounding each number to the nearest 10: ______
- Estimate 40 + 86 by rounding each number to the nearest 10: ______
- Estimate 77 − 62 by rounding each number to the nearest 10: ______
- Estimate 48 − 67 by rounding each number to the nearest 10: ______
- Estimate 70 − 36 by rounding each number to the nearest 10: ______
- Estimate 78 + 40 by rounding each number to the nearest 10: ______
- Estimate 41 − 56 by rounding each number to the nearest 10: ______
- Estimate 84 + 76 by rounding each number to the nearest 10: ______
- Estimate 44 − 87 by rounding each number to the nearest 10: ______
- Estimate 24 + 77 by rounding each number to the nearest 10: ______
- Estimate 48 + 34 by rounding each number to the nearest 10: ______