Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 49 − 89 by rounding each number to the nearest 10: ______
- Estimate 85 − 84 by rounding each number to the nearest 10: ______
- Estimate 37 + 75 by rounding each number to the nearest 10: ______
- Estimate 88 − 74 by rounding each number to the nearest 10: ______
- Estimate 65 − 25 by rounding each number to the nearest 10: ______
- Estimate 44 − 23 by rounding each number to the nearest 10: ______
- Estimate 77 + 74 by rounding each number to the nearest 10: ______
- Estimate 38 − 23 by rounding each number to the nearest 10: ______
- Estimate 70 + 60 by rounding each number to the nearest 10: ______
- Estimate 33 − 64 by rounding each number to the nearest 10: ______
- Estimate 88 + 45 by rounding each number to the nearest 10: ______
- Estimate 24 − 70 by rounding each number to the nearest 10: ______
- Estimate 68 − 66 by rounding each number to the nearest 10: ______
- Estimate 58 − 68 by rounding each number to the nearest 10: ______
- Estimate 58 − 86 by rounding each number to the nearest 10: ______
- Estimate 57 − 55 by rounding each number to the nearest 10: ______
- Estimate 36 + 67 by rounding each number to the nearest 10: ______
- Estimate 86 − 45 by rounding each number to the nearest 10: ______
- Estimate 24 − 78 by rounding each number to the nearest 10: ______
- Estimate 29 − 82 by rounding each number to the nearest 10: ______