Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 35 − 85 by rounding each number to the nearest 10: ______
- Estimate 41 − 43 by rounding each number to the nearest 10: ______
- Estimate 37 − 64 by rounding each number to the nearest 10: ______
- Estimate 62 + 73 by rounding each number to the nearest 10: ______
- Estimate 84 + 83 by rounding each number to the nearest 10: ______
- Estimate 80 + 54 by rounding each number to the nearest 10: ______
- Estimate 76 + 66 by rounding each number to the nearest 10: ______
- Estimate 56 + 64 by rounding each number to the nearest 10: ______
- Estimate 67 − 68 by rounding each number to the nearest 10: ______
- Estimate 31 − 46 by rounding each number to the nearest 10: ______
- Estimate 53 + 47 by rounding each number to the nearest 10: ______
- Estimate 21 + 36 by rounding each number to the nearest 10: ______
- Estimate 71 + 47 by rounding each number to the nearest 10: ______
- Estimate 25 − 64 by rounding each number to the nearest 10: ______
- Estimate 83 + 29 by rounding each number to the nearest 10: ______
- Estimate 77 + 39 by rounding each number to the nearest 10: ______
- Estimate 42 + 54 by rounding each number to the nearest 10: ______
- Estimate 74 − 77 by rounding each number to the nearest 10: ______
- Estimate 78 − 80 by rounding each number to the nearest 10: ______
- Estimate 29 − 81 by rounding each number to the nearest 10: ______