Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 85 − 80 by rounding each number to the nearest 10: ______
- Estimate 75 − 23 by rounding each number to the nearest 10: ______
- Estimate 81 + 82 by rounding each number to the nearest 10: ______
- Estimate 61 − 71 by rounding each number to the nearest 10: ______
- Estimate 60 − 39 by rounding each number to the nearest 10: ______
- Estimate 75 + 37 by rounding each number to the nearest 10: ______
- Estimate 70 + 67 by rounding each number to the nearest 10: ______
- Estimate 62 + 71 by rounding each number to the nearest 10: ______
- Estimate 79 − 71 by rounding each number to the nearest 10: ______
- Estimate 31 − 40 by rounding each number to the nearest 10: ______
- Estimate 85 + 80 by rounding each number to the nearest 10: ______
- Estimate 67 + 78 by rounding each number to the nearest 10: ______
- Estimate 85 − 38 by rounding each number to the nearest 10: ______
- Estimate 47 + 64 by rounding each number to the nearest 10: ______
- Estimate 41 − 58 by rounding each number to the nearest 10: ______
- Estimate 66 − 50 by rounding each number to the nearest 10: ______
- Estimate 23 − 75 by rounding each number to the nearest 10: ______
- Estimate 32 + 34 by rounding each number to the nearest 10: ______
- Estimate 69 − 82 by rounding each number to the nearest 10: ______
- Estimate 59 − 74 by rounding each number to the nearest 10: ______