Estimación Worksheet
Name: ____________________Date: ____________
Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.
20 problems
- Estimate 45 − 21 by rounding each number to the nearest 10: ______
- Estimate 46 + 22 by rounding each number to the nearest 10: ______
- Estimate 40 − 43 by rounding each number to the nearest 10: ______
- Estimate 66 + 78 by rounding each number to the nearest 10: ______
- Estimate 86 − 63 by rounding each number to the nearest 10: ______
- Estimate 57 + 55 by rounding each number to the nearest 10: ______
- Estimate 60 + 52 by rounding each number to the nearest 10: ______
- Estimate 39 + 80 by rounding each number to the nearest 10: ______
- Estimate 83 + 89 by rounding each number to the nearest 10: ______
- Estimate 28 + 66 by rounding each number to the nearest 10: ______
- Estimate 31 − 43 by rounding each number to the nearest 10: ______
- Estimate 37 + 52 by rounding each number to the nearest 10: ______
- Estimate 68 − 62 by rounding each number to the nearest 10: ______
- Estimate 31 − 66 by rounding each number to the nearest 10: ______
- Estimate 24 + 36 by rounding each number to the nearest 10: ______
- Estimate 63 + 28 by rounding each number to the nearest 10: ______
- Estimate 49 + 53 by rounding each number to the nearest 10: ______
- Estimate 47 − 50 by rounding each number to the nearest 10: ______
- Estimate 81 + 70 by rounding each number to the nearest 10: ______
- Estimate 46 + 61 by rounding each number to the nearest 10: ______