Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 67 − 62 by rounding each number to the nearest 10: ______
- Estimate 71 + 55 by rounding each number to the nearest 10: ______
- Estimate 70 − 71 by rounding each number to the nearest 10: ______
- Estimate 71 + 47 by rounding each number to the nearest 10: ______
- Estimate 82 − 51 by rounding each number to the nearest 10: ______
- Estimate 84 + 68 by rounding each number to the nearest 10: ______
- Estimate 83 − 74 by rounding each number to the nearest 10: ______
- Estimate 37 + 79 by rounding each number to the nearest 10: ______
- Estimate 46 + 43 by rounding each number to the nearest 10: ______
- Estimate 81 − 63 by rounding each number to the nearest 10: ______
- Estimate 71 − 79 by rounding each number to the nearest 10: ______
- Estimate 47 + 38 by rounding each number to the nearest 10: ______
- Estimate 48 + 42 by rounding each number to the nearest 10: ______
- Estimate 80 − 23 by rounding each number to the nearest 10: ______
- Estimate 31 + 57 by rounding each number to the nearest 10: ______
- Estimate 22 − 54 by rounding each number to the nearest 10: ______
- Estimate 29 + 73 by rounding each number to the nearest 10: ______
- Estimate 47 − 89 by rounding each number to the nearest 10: ______
- Estimate 88 − 52 by rounding each number to the nearest 10: ______
- Estimate 48 + 73 by rounding each number to the nearest 10: ______