Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 48 + 47 by rounding each number to the nearest 10: ______
- Estimate 85 + 64 by rounding each number to the nearest 10: ______
- Estimate 26 − 85 by rounding each number to the nearest 10: ______
- Estimate 33 + 55 by rounding each number to the nearest 10: ______
- Estimate 65 + 48 by rounding each number to the nearest 10: ______
- Estimate 45 + 40 by rounding each number to the nearest 10: ______
- Estimate 73 + 50 by rounding each number to the nearest 10: ______
- Estimate 52 − 34 by rounding each number to the nearest 10: ______
- Estimate 89 + 65 by rounding each number to the nearest 10: ______
- Estimate 43 − 75 by rounding each number to the nearest 10: ______
- Estimate 21 − 77 by rounding each number to the nearest 10: ______
- Estimate 63 + 87 by rounding each number to the nearest 10: ______
- Estimate 67 − 59 by rounding each number to the nearest 10: ______
- Estimate 47 − 68 by rounding each number to the nearest 10: ______
- Estimate 34 + 43 by rounding each number to the nearest 10: ______
- Estimate 42 − 50 by rounding each number to the nearest 10: ______
- Estimate 27 − 82 by rounding each number to the nearest 10: ______
- Estimate 41 + 35 by rounding each number to the nearest 10: ______
- Estimate 54 − 51 by rounding each number to the nearest 10: ______
- Estimate 53 + 35 by rounding each number to the nearest 10: ______