Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 30 + 48 by rounding each number to the nearest 10: ______
- Estimate 43 − 50 by rounding each number to the nearest 10: ______
- Estimate 76 − 33 by rounding each number to the nearest 10: ______
- Estimate 27 − 39 by rounding each number to the nearest 10: ______
- Estimate 26 − 37 by rounding each number to the nearest 10: ______
- Estimate 65 + 53 by rounding each number to the nearest 10: ______
- Estimate 61 + 82 by rounding each number to the nearest 10: ______
- Estimate 46 + 49 by rounding each number to the nearest 10: ______
- Estimate 37 − 49 by rounding each number to the nearest 10: ______
- Estimate 21 + 33 by rounding each number to the nearest 10: ______
- Estimate 83 − 87 by rounding each number to the nearest 10: ______
- Estimate 38 − 68 by rounding each number to the nearest 10: ______
- Estimate 38 − 73 by rounding each number to the nearest 10: ______
- Estimate 29 + 72 by rounding each number to the nearest 10: ______
- Estimate 40 − 49 by rounding each number to the nearest 10: ______
- Estimate 28 − 68 by rounding each number to the nearest 10: ______
- Estimate 30 − 62 by rounding each number to the nearest 10: ______
- Estimate 35 − 72 by rounding each number to the nearest 10: ______
- Estimate 80 − 87 by rounding each number to the nearest 10: ______
- Estimate 29 − 59 by rounding each number to the nearest 10: ______