Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 56 + 89 by rounding each number to the nearest 10: ______
- Estimate 78 + 55 by rounding each number to the nearest 10: ______
- Estimate 42 + 44 by rounding each number to the nearest 10: ______
- Estimate 60 + 86 by rounding each number to the nearest 10: ______
- Estimate 58 − 44 by rounding each number to the nearest 10: ______
- Estimate 34 + 47 by rounding each number to the nearest 10: ______
- Estimate 59 + 85 by rounding each number to the nearest 10: ______
- Estimate 50 − 61 by rounding each number to the nearest 10: ______
- Estimate 65 − 79 by rounding each number to the nearest 10: ______
- Estimate 42 − 67 by rounding each number to the nearest 10: ______
- Estimate 79 − 42 by rounding each number to the nearest 10: ______
- Estimate 23 + 30 by rounding each number to the nearest 10: ______
- Estimate 29 − 60 by rounding each number to the nearest 10: ______
- Estimate 58 − 81 by rounding each number to the nearest 10: ______
- Estimate 48 − 75 by rounding each number to the nearest 10: ______
- Estimate 26 + 27 by rounding each number to the nearest 10: ______
- Estimate 30 + 50 by rounding each number to the nearest 10: ______
- Estimate 41 − 58 by rounding each number to the nearest 10: ______
- Estimate 68 − 61 by rounding each number to the nearest 10: ______
- Estimate 62 − 23 by rounding each number to the nearest 10: ______