Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 24 + 37 by rounding each number to the nearest 10: ______
- Estimate 40 − 29 by rounding each number to the nearest 10: ______
- Estimate 29 − 40 by rounding each number to the nearest 10: ______
- Estimate 29 − 43 by rounding each number to the nearest 10: ______
- Estimate 39 + 26 by rounding each number to the nearest 10: ______
- Estimate 30 − 41 by rounding each number to the nearest 10: ______
- Estimate 40 + 40 by rounding each number to the nearest 10: ______
- Estimate 61 + 68 by rounding each number to the nearest 10: ______
- Estimate 38 + 21 by rounding each number to the nearest 10: ______
- Estimate 45 − 50 by rounding each number to the nearest 10: ______
- Estimate 31 + 61 by rounding each number to the nearest 10: ______
- Estimate 38 + 56 by rounding each number to the nearest 10: ______
- Estimate 35 − 50 by rounding each number to the nearest 10: ______
- Estimate 52 − 31 by rounding each number to the nearest 10: ______
- Estimate 50 + 62 by rounding each number to the nearest 10: ______
- Estimate 89 − 22 by rounding each number to the nearest 10: ______
- Estimate 25 + 59 by rounding each number to the nearest 10: ______
- Estimate 69 − 40 by rounding each number to the nearest 10: ______
- Estimate 51 − 47 by rounding each number to the nearest 10: ______
- Estimate 42 + 56 by rounding each number to the nearest 10: ______