Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 83 − 21 by rounding each number to the nearest 10: ______
- Estimate 84 + 22 by rounding each number to the nearest 10: ______
- Estimate 43 + 87 by rounding each number to the nearest 10: ______
- Estimate 83 + 24 by rounding each number to the nearest 10: ______
- Estimate 89 − 43 by rounding each number to the nearest 10: ______
- Estimate 50 + 62 by rounding each number to the nearest 10: ______
- Estimate 62 + 66 by rounding each number to the nearest 10: ______
- Estimate 43 + 61 by rounding each number to the nearest 10: ______
- Estimate 40 − 79 by rounding each number to the nearest 10: ______
- Estimate 54 + 31 by rounding each number to the nearest 10: ______
- Estimate 28 + 53 by rounding each number to the nearest 10: ______
- Estimate 57 + 34 by rounding each number to the nearest 10: ______
- Estimate 80 + 74 by rounding each number to the nearest 10: ______
- Estimate 58 − 42 by rounding each number to the nearest 10: ______
- Estimate 23 + 44 by rounding each number to the nearest 10: ______
- Estimate 63 − 79 by rounding each number to the nearest 10: ______
- Estimate 52 − 60 by rounding each number to the nearest 10: ______
- Estimate 54 + 52 by rounding each number to the nearest 10: ______
- Estimate 25 + 50 by rounding each number to the nearest 10: ______
- Estimate 50 − 56 by rounding each number to the nearest 10: ______