Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 85 + 21 by rounding each number to the nearest 10: ______
- Estimate 49 + 79 by rounding each number to the nearest 10: ______
- Estimate 72 − 26 by rounding each number to the nearest 10: ______
- Estimate 38 − 29 by rounding each number to the nearest 10: ______
- Estimate 31 + 28 by rounding each number to the nearest 10: ______
- Estimate 45 + 59 by rounding each number to the nearest 10: ______
- Estimate 60 + 36 by rounding each number to the nearest 10: ______
- Estimate 23 + 23 by rounding each number to the nearest 10: ______
- Estimate 25 − 63 by rounding each number to the nearest 10: ______
- Estimate 65 − 76 by rounding each number to the nearest 10: ______
- Estimate 21 + 64 by rounding each number to the nearest 10: ______
- Estimate 86 + 47 by rounding each number to the nearest 10: ______
- Estimate 34 + 46 by rounding each number to the nearest 10: ______
- Estimate 42 + 59 by rounding each number to the nearest 10: ______
- Estimate 26 − 81 by rounding each number to the nearest 10: ______
- Estimate 74 + 47 by rounding each number to the nearest 10: ______
- Estimate 64 − 28 by rounding each number to the nearest 10: ______
- Estimate 47 + 61 by rounding each number to the nearest 10: ______
- Estimate 80 + 74 by rounding each number to the nearest 10: ______
- Estimate 71 − 53 by rounding each number to the nearest 10: ______