4.2.1 In a packet of 32 smarties, there are 8 yellow smarties. Write the number of yellow smarties in the packet as a percentage.

To find the number of yellow smarties as a percentage, you divide the number of yellow smarties (8) by the total number of smarties (32) and then multiply by 100. So, \( \frac{8}{32} \times 100 = 25\% \). That means 25% of the smarties in the packet are yellow! If you ever find yourself stumped by percentages, one handy trick is to simplify the fraction first. In this case, both 8 and 32 can be simplified by dividing by 8, which gives you \( \frac{1}{4} \). Then, since 1/4 is 25%, you can quickly calculate that 25% of the smarties are yellow!