Question

Write the following numbers by $10,100$ and $1000$:
$6.3÷0.09$

Answer 1

b'

$6.3÷0.09=\frac{63}{10}÷\frac{9}{100}$

$=\frac{63}{10}\times$reciprocal of $\frac{9}{100}$

$=\frac{63}{10}\times \frac{100}{9}$

$=\frac{63\times 100}{10\times 9}$

$=7\times 10=70$

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