Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 22 − 84 by rounding each number to the nearest 10: ______
- Estimate 45 − 86 by rounding each number to the nearest 10: ______
- Estimate 54 + 39 by rounding each number to the nearest 10: ______
- Estimate 45 − 75 by rounding each number to the nearest 10: ______
- Estimate 57 + 22 by rounding each number to the nearest 10: ______
- Estimate 49 − 29 by rounding each number to the nearest 10: ______
- Estimate 59 + 49 by rounding each number to the nearest 10: ______
- Estimate 65 + 27 by rounding each number to the nearest 10: ______
- Estimate 62 − 42 by rounding each number to the nearest 10: ______
- Estimate 69 + 35 by rounding each number to the nearest 10: ______
- Estimate 81 − 77 by rounding each number to the nearest 10: ______
- Estimate 41 − 41 by rounding each number to the nearest 10: ______
- Estimate 24 + 62 by rounding each number to the nearest 10: ______
- Estimate 82 + 55 by rounding each number to the nearest 10: ______
- Estimate 21 − 80 by rounding each number to the nearest 10: ______
- Estimate 73 − 33 by rounding each number to the nearest 10: ______
- Estimate 27 + 82 by rounding each number to the nearest 10: ______
- Estimate 86 − 23 by rounding each number to the nearest 10: ______
- Estimate 67 + 48 by rounding each number to the nearest 10: ______
- Estimate 56 − 72 by rounding each number to the nearest 10: ______