I uses the bar chart illustration method.
can explain in more detail?
The steps are the same as most of you except that to ensure that the teacher know that i understand, i draw bars
Wallet that 1 wallet customer recieved
X
Wallets that 2 wallets customer recieved
XXO
(The X are the parts shaded which represent those sold. O is the free wallet)
Usually for primary school even if you get the answer with the working above, you will not get full point unless you draw a bar chart.