Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 89 − 68 by rounding each number to the nearest 10: ______
- Estimate 83 + 21 by rounding each number to the nearest 10: ______
- Estimate 66 + 84 by rounding each number to the nearest 10: ______
- Estimate 34 + 28 by rounding each number to the nearest 10: ______
- Estimate 72 − 30 by rounding each number to the nearest 10: ______
- Estimate 66 + 40 by rounding each number to the nearest 10: ______
- Estimate 42 + 38 by rounding each number to the nearest 10: ______
- Estimate 32 − 57 by rounding each number to the nearest 10: ______
- Estimate 68 − 75 by rounding each number to the nearest 10: ______
- Estimate 60 + 46 by rounding each number to the nearest 10: ______
- Estimate 67 − 76 by rounding each number to the nearest 10: ______
- Estimate 76 + 38 by rounding each number to the nearest 10: ______
- Estimate 60 − 25 by rounding each number to the nearest 10: ______
- Estimate 41 − 45 by rounding each number to the nearest 10: ______
- Estimate 36 − 21 by rounding each number to the nearest 10: ______
- Estimate 43 + 71 by rounding each number to the nearest 10: ______
- Estimate 72 + 44 by rounding each number to the nearest 10: ______
- Estimate 32 + 36 by rounding each number to the nearest 10: ______
- Estimate 31 − 89 by rounding each number to the nearest 10: ______
- Estimate 38 − 77 by rounding each number to the nearest 10: ______