Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 77 + 80 by rounding each number to the nearest 10: ______
- Estimate 70 + 85 by rounding each number to the nearest 10: ______
- Estimate 22 + 21 by rounding each number to the nearest 10: ______
- Estimate 63 − 68 by rounding each number to the nearest 10: ______
- Estimate 41 + 74 by rounding each number to the nearest 10: ______
- Estimate 62 − 79 by rounding each number to the nearest 10: ______
- Estimate 70 − 85 by rounding each number to the nearest 10: ______
- Estimate 65 − 85 by rounding each number to the nearest 10: ______
- Estimate 44 + 33 by rounding each number to the nearest 10: ______
- Estimate 46 − 66 by rounding each number to the nearest 10: ______
- Estimate 46 − 24 by rounding each number to the nearest 10: ______
- Estimate 88 − 79 by rounding each number to the nearest 10: ______
- Estimate 45 − 35 by rounding each number to the nearest 10: ______
- Estimate 43 − 49 by rounding each number to the nearest 10: ______
- Estimate 76 − 56 by rounding each number to the nearest 10: ______
- Estimate 54 + 21 by rounding each number to the nearest 10: ______
- Estimate 71 + 77 by rounding each number to the nearest 10: ______
- Estimate 70 − 65 by rounding each number to the nearest 10: ______
- Estimate 67 + 59 by rounding each number to the nearest 10: ______
- Estimate 56 − 40 by rounding each number to the nearest 10: ______