Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 57 − 78 by rounding each number to the nearest 10: ______
- Estimate 62 + 71 by rounding each number to the nearest 10: ______
- Estimate 64 + 36 by rounding each number to the nearest 10: ______
- Estimate 75 + 24 by rounding each number to the nearest 10: ______
- Estimate 61 + 79 by rounding each number to the nearest 10: ______
- Estimate 62 + 50 by rounding each number to the nearest 10: ______
- Estimate 39 − 32 by rounding each number to the nearest 10: ______
- Estimate 36 + 58 by rounding each number to the nearest 10: ______
- Estimate 69 − 80 by rounding each number to the nearest 10: ______
- Estimate 46 − 80 by rounding each number to the nearest 10: ______
- Estimate 41 − 60 by rounding each number to the nearest 10: ______
- Estimate 69 + 77 by rounding each number to the nearest 10: ______
- Estimate 70 + 30 by rounding each number to the nearest 10: ______
- Estimate 30 − 36 by rounding each number to the nearest 10: ______
- Estimate 79 + 80 by rounding each number to the nearest 10: ______
- Estimate 37 + 40 by rounding each number to the nearest 10: ______
- Estimate 84 − 73 by rounding each number to the nearest 10: ______
- Estimate 75 − 42 by rounding each number to the nearest 10: ______
- Estimate 50 − 27 by rounding each number to the nearest 10: ______
- Estimate 54 + 32 by rounding each number to the nearest 10: ______