Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 28 + 35 by rounding each number to the nearest 10: ______
- Estimate 23 − 80 by rounding each number to the nearest 10: ______
- Estimate 39 − 50 by rounding each number to the nearest 10: ______
- Estimate 52 + 48 by rounding each number to the nearest 10: ______
- Estimate 36 − 60 by rounding each number to the nearest 10: ______
- Estimate 71 − 57 by rounding each number to the nearest 10: ______
- Estimate 63 + 24 by rounding each number to the nearest 10: ______
- Estimate 83 + 51 by rounding each number to the nearest 10: ______
- Estimate 55 + 23 by rounding each number to the nearest 10: ______
- Estimate 82 + 73 by rounding each number to the nearest 10: ______
- Estimate 39 − 53 by rounding each number to the nearest 10: ______
- Estimate 71 + 33 by rounding each number to the nearest 10: ______
- Estimate 64 + 44 by rounding each number to the nearest 10: ______
- Estimate 80 − 87 by rounding each number to the nearest 10: ______
- Estimate 75 − 76 by rounding each number to the nearest 10: ______
- Estimate 54 − 36 by rounding each number to the nearest 10: ______
- Estimate 52 − 52 by rounding each number to the nearest 10: ______
- Estimate 65 − 38 by rounding each number to the nearest 10: ______
- Estimate 65 + 61 by rounding each number to the nearest 10: ______
- Estimate 27 − 74 by rounding each number to the nearest 10: ______