Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 25 − 54 by rounding each number to the nearest 10: ______
- Estimate 56 − 77 by rounding each number to the nearest 10: ______
- Estimate 37 + 72 by rounding each number to the nearest 10: ______
- Estimate 67 + 32 by rounding each number to the nearest 10: ______
- Estimate 34 − 50 by rounding each number to the nearest 10: ______
- Estimate 80 − 63 by rounding each number to the nearest 10: ______
- Estimate 83 + 55 by rounding each number to the nearest 10: ______
- Estimate 68 − 25 by rounding each number to the nearest 10: ______
- Estimate 40 + 78 by rounding each number to the nearest 10: ______
- Estimate 53 − 38 by rounding each number to the nearest 10: ______
- Estimate 53 + 42 by rounding each number to the nearest 10: ______
- Estimate 71 − 84 by rounding each number to the nearest 10: ______
- Estimate 63 + 75 by rounding each number to the nearest 10: ______
- Estimate 79 − 40 by rounding each number to the nearest 10: ______
- Estimate 40 − 79 by rounding each number to the nearest 10: ______
- Estimate 26 − 30 by rounding each number to the nearest 10: ______
- Estimate 29 − 46 by rounding each number to the nearest 10: ______
- Estimate 65 + 39 by rounding each number to the nearest 10: ______
- Estimate 40 − 70 by rounding each number to the nearest 10: ______
- Estimate 49 + 30 by rounding each number to the nearest 10: ______