Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 23 − 75 by rounding each number to the nearest 10: ______
- Estimate 70 + 42 by rounding each number to the nearest 10: ______
- Estimate 48 − 72 by rounding each number to the nearest 10: ______
- Estimate 22 − 62 by rounding each number to the nearest 10: ______
- Estimate 86 − 70 by rounding each number to the nearest 10: ______
- Estimate 59 + 25 by rounding each number to the nearest 10: ______
- Estimate 57 − 75 by rounding each number to the nearest 10: ______
- Estimate 44 + 76 by rounding each number to the nearest 10: ______
- Estimate 76 − 52 by rounding each number to the nearest 10: ______
- Estimate 49 + 55 by rounding each number to the nearest 10: ______
- Estimate 44 + 54 by rounding each number to the nearest 10: ______
- Estimate 77 + 69 by rounding each number to the nearest 10: ______
- Estimate 31 − 82 by rounding each number to the nearest 10: ______
- Estimate 25 + 37 by rounding each number to the nearest 10: ______
- Estimate 29 + 21 by rounding each number to the nearest 10: ______
- Estimate 55 − 25 by rounding each number to the nearest 10: ______
- Estimate 87 + 62 by rounding each number to the nearest 10: ______
- Estimate 57 − 62 by rounding each number to the nearest 10: ______
- Estimate 38 + 47 by rounding each number to the nearest 10: ______
- Estimate 52 + 69 by rounding each number to the nearest 10: ______