Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 78 − 23 by rounding each number to the nearest 10: ______
- Estimate 79 − 67 by rounding each number to the nearest 10: ______
- Estimate 85 − 23 by rounding each number to the nearest 10: ______
- Estimate 51 + 85 by rounding each number to the nearest 10: ______
- Estimate 39 + 49 by rounding each number to the nearest 10: ______
- Estimate 40 − 72 by rounding each number to the nearest 10: ______
- Estimate 71 − 31 by rounding each number to the nearest 10: ______
- Estimate 62 + 34 by rounding each number to the nearest 10: ______
- Estimate 72 − 71 by rounding each number to the nearest 10: ______
- Estimate 71 + 52 by rounding each number to the nearest 10: ______
- Estimate 35 + 74 by rounding each number to the nearest 10: ______
- Estimate 21 − 61 by rounding each number to the nearest 10: ______
- Estimate 86 + 62 by rounding each number to the nearest 10: ______
- Estimate 40 + 78 by rounding each number to the nearest 10: ______
- Estimate 77 + 58 by rounding each number to the nearest 10: ______
- Estimate 31 + 33 by rounding each number to the nearest 10: ______
- Estimate 48 − 60 by rounding each number to the nearest 10: ______
- Estimate 23 + 48 by rounding each number to the nearest 10: ______
- Estimate 50 − 37 by rounding each number to the nearest 10: ______
- Estimate 74 + 71 by rounding each number to the nearest 10: ______