Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 78 + 80 by rounding each number to the nearest 10: ______
- Estimate 62 + 55 by rounding each number to the nearest 10: ______
- Estimate 83 − 32 by rounding each number to the nearest 10: ______
- Estimate 37 + 34 by rounding each number to the nearest 10: ______
- Estimate 28 + 47 by rounding each number to the nearest 10: ______
- Estimate 28 + 50 by rounding each number to the nearest 10: ______
- Estimate 60 + 37 by rounding each number to the nearest 10: ______
- Estimate 68 + 67 by rounding each number to the nearest 10: ______
- Estimate 77 + 67 by rounding each number to the nearest 10: ______
- Estimate 36 − 65 by rounding each number to the nearest 10: ______
- Estimate 59 + 82 by rounding each number to the nearest 10: ______
- Estimate 59 − 49 by rounding each number to the nearest 10: ______
- Estimate 65 − 70 by rounding each number to the nearest 10: ______
- Estimate 76 − 75 by rounding each number to the nearest 10: ______
- Estimate 87 − 33 by rounding each number to the nearest 10: ______
- Estimate 66 − 74 by rounding each number to the nearest 10: ______
- Estimate 79 + 54 by rounding each number to the nearest 10: ______
- Estimate 53 + 77 by rounding each number to the nearest 10: ______
- Estimate 27 + 51 by rounding each number to the nearest 10: ______
- Estimate 56 + 83 by rounding each number to the nearest 10: ______