Here is shape $1$.

The area of shape $1$ is $45 c{m}^2$. Work out the area that is shaded pink.

Here is shape $2$.

The area of shape $2$ is $75 c{m}^2$. Work out the area that is shaded blue.

Work out:

$\frac{1}{2} \text{of} 60$ grams

Work out:

$\frac{3}{4} \text{of} 60$ grams

Work out:

$\frac{4}{5} \text{of} 60$ grams

Work out:

$\frac{7}{10} \text{of} 60$ grams

Work out:

$\frac{11}{20} \text{of} 60$ grams

Work out:

$50\% \text{of} \$300$

Work out:

$20\% \text{of} \$300$