Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 52 + 51 by rounding each number to the nearest 10: ______
- Estimate 29 − 77 by rounding each number to the nearest 10: ______
- Estimate 27 − 25 by rounding each number to the nearest 10: ______
- Estimate 63 + 31 by rounding each number to the nearest 10: ______
- Estimate 21 + 59 by rounding each number to the nearest 10: ______
- Estimate 46 + 60 by rounding each number to the nearest 10: ______
- Estimate 55 + 47 by rounding each number to the nearest 10: ______
- Estimate 84 + 24 by rounding each number to the nearest 10: ______
- Estimate 42 + 78 by rounding each number to the nearest 10: ______
- Estimate 60 − 39 by rounding each number to the nearest 10: ______
- Estimate 87 − 57 by rounding each number to the nearest 10: ______
- Estimate 69 − 60 by rounding each number to the nearest 10: ______
- Estimate 79 − 59 by rounding each number to the nearest 10: ______
- Estimate 73 − 26 by rounding each number to the nearest 10: ______
- Estimate 50 − 84 by rounding each number to the nearest 10: ______
- Estimate 65 − 23 by rounding each number to the nearest 10: ______
- Estimate 32 + 64 by rounding each number to the nearest 10: ______
- Estimate 85 + 59 by rounding each number to the nearest 10: ______
- Estimate 87 + 75 by rounding each number to the nearest 10: ______
- Estimate 28 − 43 by rounding each number to the nearest 10: ______