Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 73 − 87 by rounding each number to the nearest 10: ______
- Estimate 48 + 42 by rounding each number to the nearest 10: ______
- Estimate 68 + 36 by rounding each number to the nearest 10: ______
- Estimate 69 + 45 by rounding each number to the nearest 10: ______
- Estimate 70 + 60 by rounding each number to the nearest 10: ______
- Estimate 49 − 28 by rounding each number to the nearest 10: ______
- Estimate 81 + 62 by rounding each number to the nearest 10: ______
- Estimate 65 − 53 by rounding each number to the nearest 10: ______
- Estimate 87 + 47 by rounding each number to the nearest 10: ______
- Estimate 46 + 42 by rounding each number to the nearest 10: ______
- Estimate 62 − 24 by rounding each number to the nearest 10: ______
- Estimate 65 − 49 by rounding each number to the nearest 10: ______
- Estimate 42 − 22 by rounding each number to the nearest 10: ______
- Estimate 51 − 79 by rounding each number to the nearest 10: ______
- Estimate 88 − 69 by rounding each number to the nearest 10: ______
- Estimate 89 − 25 by rounding each number to the nearest 10: ______
- Estimate 56 − 52 by rounding each number to the nearest 10: ______
- Estimate 81 + 57 by rounding each number to the nearest 10: ______
- Estimate 58 + 77 by rounding each number to the nearest 10: ______
- Estimate 46 + 47 by rounding each number to the nearest 10: ______