Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 65 + 35 by rounding each number to the nearest 10: ______
- Estimate 43 + 87 by rounding each number to the nearest 10: ______
- Estimate 68 − 87 by rounding each number to the nearest 10: ______
- Estimate 48 + 41 by rounding each number to the nearest 10: ______
- Estimate 27 − 63 by rounding each number to the nearest 10: ______
- Estimate 54 − 81 by rounding each number to the nearest 10: ______
- Estimate 69 + 52 by rounding each number to the nearest 10: ______
- Estimate 35 − 58 by rounding each number to the nearest 10: ______
- Estimate 60 + 63 by rounding each number to the nearest 10: ______
- Estimate 21 − 78 by rounding each number to the nearest 10: ______
- Estimate 48 + 67 by rounding each number to the nearest 10: ______
- Estimate 66 − 74 by rounding each number to the nearest 10: ______
- Estimate 66 + 72 by rounding each number to the nearest 10: ______
- Estimate 26 + 47 by rounding each number to the nearest 10: ______
- Estimate 61 − 43 by rounding each number to the nearest 10: ______
- Estimate 52 + 62 by rounding each number to the nearest 10: ______
- Estimate 50 − 71 by rounding each number to the nearest 10: ______
- Estimate 66 − 85 by rounding each number to the nearest 10: ______
- Estimate 75 − 34 by rounding each number to the nearest 10: ______
- Estimate 58 − 32 by rounding each number to the nearest 10: ______