Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 59 + 85 by rounding each number to the nearest 10: ______
- Estimate 78 + 67 by rounding each number to the nearest 10: ______
- Estimate 36 − 63 by rounding each number to the nearest 10: ______
- Estimate 53 − 65 by rounding each number to the nearest 10: ______
- Estimate 32 − 54 by rounding each number to the nearest 10: ______
- Estimate 38 + 78 by rounding each number to the nearest 10: ______
- Estimate 27 + 44 by rounding each number to the nearest 10: ______
- Estimate 58 − 72 by rounding each number to the nearest 10: ______
- Estimate 67 − 83 by rounding each number to the nearest 10: ______
- Estimate 70 + 77 by rounding each number to the nearest 10: ______
- Estimate 23 + 78 by rounding each number to the nearest 10: ______
- Estimate 71 + 79 by rounding each number to the nearest 10: ______
- Estimate 84 + 77 by rounding each number to the nearest 10: ______
- Estimate 42 + 46 by rounding each number to the nearest 10: ______
- Estimate 48 + 66 by rounding each number to the nearest 10: ______
- Estimate 77 − 23 by rounding each number to the nearest 10: ______
- Estimate 49 + 27 by rounding each number to the nearest 10: ______
- Estimate 48 − 23 by rounding each number to the nearest 10: ______
- Estimate 40 + 83 by rounding each number to the nearest 10: ______
- Estimate 26 − 66 by rounding each number to the nearest 10: ______