Solution 6: (a) 10 mm = 1 cm. 1mm = 1 10 \frac{1}{10} 101cm. 2 mm = 1 10 × 2 = 2 10 \frac{1}{10}\times2=\frac{2}{10} 101×2=102 cm = 0.2 cm.
確定! 回上一頁