Question
i. 2.7 × 1.4
ii. 6.17 × 3.9
iii. 0.57 × 2
iv. 5.04 × 0.7
ii. 6.17 × 3.9
iii. 0.57 × 2
iv. 5.04 × 0.7
✓
Answer
$\begin{aligned}& \text { i. } 2.7 \times 1.4 \\& =\frac{27}{10} \times \frac{14}{10} \\
& =\frac{27 \times 14}{10 \times 10}=\frac{378}{100} \\& =3.75\end{aligned}$
$\text { ii. } \begin{aligned}& 6.17 \times 3.9 \\= & \frac{617}{100} \times \frac{39}{10} \\= & \frac{617 \times 39}{100 \times 10}=\frac{24063}{1000} \\= & 24.063
\end{aligned}$
iii. $0.57 \times 2$
$\begin{aligned}& =\frac{57}{100} \times \frac{2}{1} \\& =\frac{57 \times 2}{100 \times 1}=\frac{114}{100} \\& =1.14\end{aligned}$
iv. $5.04 \times 0.7$
$\begin{aligned}& =\frac{504}{100} \times \frac{7}{10} \\& =\frac{504 \times 7}{100 \times 10}=\frac{3528}{1000} \\& =3.528\end{aligned}$
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