Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 49 − 50 by rounding each number to the nearest 10: ______
- Estimate 52 + 31 by rounding each number to the nearest 10: ______
- Estimate 53 + 28 by rounding each number to the nearest 10: ______
- Estimate 77 − 75 by rounding each number to the nearest 10: ______
- Estimate 61 + 62 by rounding each number to the nearest 10: ______
- Estimate 83 + 68 by rounding each number to the nearest 10: ______
- Estimate 30 + 43 by rounding each number to the nearest 10: ______
- Estimate 50 + 70 by rounding each number to the nearest 10: ______
- Estimate 60 − 31 by rounding each number to the nearest 10: ______
- Estimate 50 + 27 by rounding each number to the nearest 10: ______
- Estimate 40 − 50 by rounding each number to the nearest 10: ______
- Estimate 49 − 60 by rounding each number to the nearest 10: ______
- Estimate 52 − 42 by rounding each number to the nearest 10: ______
- Estimate 46 + 38 by rounding each number to the nearest 10: ______
- Estimate 32 + 85 by rounding each number to the nearest 10: ______
- Estimate 64 + 50 by rounding each number to the nearest 10: ______
- Estimate 63 − 22 by rounding each number to the nearest 10: ______
- Estimate 45 − 81 by rounding each number to the nearest 10: ______
- Estimate 52 − 32 by rounding each number to the nearest 10: ______
- Estimate 62 + 34 by rounding each number to the nearest 10: ______