Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 38 + 87 by rounding each number to the nearest 10: ______
- Estimate 44 + 37 by rounding each number to the nearest 10: ______
- Estimate 41 − 34 by rounding each number to the nearest 10: ______
- Estimate 27 − 61 by rounding each number to the nearest 10: ______
- Estimate 71 + 34 by rounding each number to the nearest 10: ______
- Estimate 42 + 34 by rounding each number to the nearest 10: ______
- Estimate 45 − 38 by rounding each number to the nearest 10: ______
- Estimate 76 − 41 by rounding each number to the nearest 10: ______
- Estimate 42 + 52 by rounding each number to the nearest 10: ______
- Estimate 31 + 28 by rounding each number to the nearest 10: ______
- Estimate 75 − 26 by rounding each number to the nearest 10: ______
- Estimate 73 + 83 by rounding each number to the nearest 10: ______
- Estimate 25 + 43 by rounding each number to the nearest 10: ______
- Estimate 61 + 79 by rounding each number to the nearest 10: ______
- Estimate 48 − 83 by rounding each number to the nearest 10: ______
- Estimate 76 + 58 by rounding each number to the nearest 10: ______
- Estimate 25 − 58 by rounding each number to the nearest 10: ______
- Estimate 44 − 61 by rounding each number to the nearest 10: ______
- Estimate 31 − 49 by rounding each number to the nearest 10: ______
- Estimate 70 + 23 by rounding each number to the nearest 10: ______