Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 47 − 30 by rounding each number to the nearest 10: ______
- Estimate 24 + 61 by rounding each number to the nearest 10: ______
- Estimate 35 + 48 by rounding each number to the nearest 10: ______
- Estimate 80 − 33 by rounding each number to the nearest 10: ______
- Estimate 48 − 61 by rounding each number to the nearest 10: ______
- Estimate 41 − 50 by rounding each number to the nearest 10: ______
- Estimate 84 − 62 by rounding each number to the nearest 10: ______
- Estimate 77 − 83 by rounding each number to the nearest 10: ______
- Estimate 78 − 53 by rounding each number to the nearest 10: ______
- Estimate 22 + 41 by rounding each number to the nearest 10: ______
- Estimate 47 − 38 by rounding each number to the nearest 10: ______
- Estimate 84 − 69 by rounding each number to the nearest 10: ______
- Estimate 81 + 30 by rounding each number to the nearest 10: ______
- Estimate 51 + 59 by rounding each number to the nearest 10: ______
- Estimate 33 − 21 by rounding each number to the nearest 10: ______
- Estimate 77 − 23 by rounding each number to the nearest 10: ______
- Estimate 33 − 86 by rounding each number to the nearest 10: ______
- Estimate 73 + 76 by rounding each number to the nearest 10: ______
- Estimate 89 − 48 by rounding each number to the nearest 10: ______
- Estimate 73 − 54 by rounding each number to the nearest 10: ______