Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 84 + 43 by rounding each number to the nearest 10: ______
- Estimate 54 + 89 by rounding each number to the nearest 10: ______
- Estimate 46 − 54 by rounding each number to the nearest 10: ______
- Estimate 57 + 84 by rounding each number to the nearest 10: ______
- Estimate 21 − 26 by rounding each number to the nearest 10: ______
- Estimate 38 + 68 by rounding each number to the nearest 10: ______
- Estimate 84 + 22 by rounding each number to the nearest 10: ______
- Estimate 63 + 75 by rounding each number to the nearest 10: ______
- Estimate 70 − 68 by rounding each number to the nearest 10: ______
- Estimate 23 − 87 by rounding each number to the nearest 10: ______
- Estimate 71 − 55 by rounding each number to the nearest 10: ______
- Estimate 36 − 58 by rounding each number to the nearest 10: ______
- Estimate 38 − 85 by rounding each number to the nearest 10: ______
- Estimate 30 − 68 by rounding each number to the nearest 10: ______
- Estimate 77 + 43 by rounding each number to the nearest 10: ______
- Estimate 35 − 36 by rounding each number to the nearest 10: ______
- Estimate 45 + 40 by rounding each number to the nearest 10: ______
- Estimate 76 − 40 by rounding each number to the nearest 10: ______
- Estimate 87 + 84 by rounding each number to the nearest 10: ______
- Estimate 83 − 57 by rounding each number to the nearest 10: ______