Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 42 + 38 by rounding each number to the nearest 10: ______
- Estimate 64 + 45 by rounding each number to the nearest 10: ______
- Estimate 60 − 30 by rounding each number to the nearest 10: ______
- Estimate 25 − 58 by rounding each number to the nearest 10: ______
- Estimate 86 − 49 by rounding each number to the nearest 10: ______
- Estimate 79 + 25 by rounding each number to the nearest 10: ______
- Estimate 41 + 21 by rounding each number to the nearest 10: ______
- Estimate 24 − 55 by rounding each number to the nearest 10: ______
- Estimate 60 − 68 by rounding each number to the nearest 10: ______
- Estimate 67 − 40 by rounding each number to the nearest 10: ______
- Estimate 74 − 67 by rounding each number to the nearest 10: ______
- Estimate 50 + 45 by rounding each number to the nearest 10: ______
- Estimate 30 + 52 by rounding each number to the nearest 10: ______
- Estimate 39 − 36 by rounding each number to the nearest 10: ______
- Estimate 67 + 86 by rounding each number to the nearest 10: ______
- Estimate 29 − 33 by rounding each number to the nearest 10: ______
- Estimate 51 + 23 by rounding each number to the nearest 10: ______
- Estimate 37 + 68 by rounding each number to the nearest 10: ______
- Estimate 68 + 61 by rounding each number to the nearest 10: ______
- Estimate 45 + 35 by rounding each number to the nearest 10: ______