Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 33 − 22 by rounding each number to the nearest 10: ______
- Estimate 21 + 55 by rounding each number to the nearest 10: ______
- Estimate 42 + 33 by rounding each number to the nearest 10: ______
- Estimate 30 + 29 by rounding each number to the nearest 10: ______
- Estimate 71 − 39 by rounding each number to the nearest 10: ______
- Estimate 61 + 61 by rounding each number to the nearest 10: ______
- Estimate 64 + 69 by rounding each number to the nearest 10: ______
- Estimate 86 − 72 by rounding each number to the nearest 10: ______
- Estimate 30 − 27 by rounding each number to the nearest 10: ______
- Estimate 33 − 84 by rounding each number to the nearest 10: ______
- Estimate 85 + 53 by rounding each number to the nearest 10: ______
- Estimate 69 − 75 by rounding each number to the nearest 10: ______
- Estimate 53 + 55 by rounding each number to the nearest 10: ______
- Estimate 76 − 65 by rounding each number to the nearest 10: ______
- Estimate 22 − 44 by rounding each number to the nearest 10: ______
- Estimate 83 − 85 by rounding each number to the nearest 10: ______
- Estimate 38 + 25 by rounding each number to the nearest 10: ______
- Estimate 29 − 59 by rounding each number to the nearest 10: ______
- Estimate 66 − 45 by rounding each number to the nearest 10: ______
- Estimate 58 − 61 by rounding each number to the nearest 10: ______