Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 65 + 22 by rounding each number to the nearest 10: ______
- Estimate 45 + 60 by rounding each number to the nearest 10: ______
- Estimate 85 − 83 by rounding each number to the nearest 10: ______
- Estimate 89 − 66 by rounding each number to the nearest 10: ______
- Estimate 89 − 66 by rounding each number to the nearest 10: ______
- Estimate 23 − 74 by rounding each number to the nearest 10: ______
- Estimate 28 − 34 by rounding each number to the nearest 10: ______
- Estimate 87 + 44 by rounding each number to the nearest 10: ______
- Estimate 86 + 44 by rounding each number to the nearest 10: ______
- Estimate 76 + 35 by rounding each number to the nearest 10: ______
- Estimate 25 − 84 by rounding each number to the nearest 10: ______
- Estimate 43 − 35 by rounding each number to the nearest 10: ______
- Estimate 31 − 61 by rounding each number to the nearest 10: ______
- Estimate 87 + 47 by rounding each number to the nearest 10: ______
- Estimate 63 − 85 by rounding each number to the nearest 10: ______
- Estimate 25 + 70 by rounding each number to the nearest 10: ______
- Estimate 28 − 77 by rounding each number to the nearest 10: ______
- Estimate 40 − 65 by rounding each number to the nearest 10: ______
- Estimate 83 − 57 by rounding each number to the nearest 10: ______
- Estimate 32 − 31 by rounding each number to the nearest 10: ______