Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 + 64 by rounding each number to the nearest 10: ______
- Estimate 29 − 44 by rounding each number to the nearest 10: ______
- Estimate 27 + 72 by rounding each number to the nearest 10: ______
- Estimate 41 + 67 by rounding each number to the nearest 10: ______
- Estimate 70 + 69 by rounding each number to the nearest 10: ______
- Estimate 45 − 86 by rounding each number to the nearest 10: ______
- Estimate 58 + 45 by rounding each number to the nearest 10: ______
- Estimate 55 + 59 by rounding each number to the nearest 10: ______
- Estimate 77 − 52 by rounding each number to the nearest 10: ______
- Estimate 45 − 66 by rounding each number to the nearest 10: ______
- Estimate 70 − 58 by rounding each number to the nearest 10: ______
- Estimate 22 + 74 by rounding each number to the nearest 10: ______
- Estimate 83 + 26 by rounding each number to the nearest 10: ______
- Estimate 78 − 74 by rounding each number to the nearest 10: ______
- Estimate 70 + 66 by rounding each number to the nearest 10: ______
- Estimate 87 + 84 by rounding each number to the nearest 10: ______
- Estimate 44 + 27 by rounding each number to the nearest 10: ______
- Estimate 89 − 75 by rounding each number to the nearest 10: ______
- Estimate 30 + 41 by rounding each number to the nearest 10: ______
- Estimate 71 − 25 by rounding each number to the nearest 10: ______