Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 + 80 by rounding each number to the nearest 10: ______
- Estimate 49 − 70 by rounding each number to the nearest 10: ______
- Estimate 50 + 65 by rounding each number to the nearest 10: ______
- Estimate 62 − 42 by rounding each number to the nearest 10: ______
- Estimate 48 − 57 by rounding each number to the nearest 10: ______
- Estimate 32 − 77 by rounding each number to the nearest 10: ______
- Estimate 80 − 68 by rounding each number to the nearest 10: ______
- Estimate 55 − 65 by rounding each number to the nearest 10: ______
- Estimate 66 − 77 by rounding each number to the nearest 10: ______
- Estimate 50 − 54 by rounding each number to the nearest 10: ______
- Estimate 61 + 89 by rounding each number to the nearest 10: ______
- Estimate 87 + 52 by rounding each number to the nearest 10: ______
- Estimate 83 − 49 by rounding each number to the nearest 10: ______
- Estimate 80 + 57 by rounding each number to the nearest 10: ______
- Estimate 36 − 83 by rounding each number to the nearest 10: ______
- Estimate 49 + 73 by rounding each number to the nearest 10: ______
- Estimate 35 − 60 by rounding each number to the nearest 10: ______
- Estimate 60 − 68 by rounding each number to the nearest 10: ______
- Estimate 87 − 51 by rounding each number to the nearest 10: ______
- Estimate 62 − 88 by rounding each number to the nearest 10: ______