Problem solving

4.8  Problem solving
There are various strategies for problem solving, always involving the question of a transaction involving money.
Example of Questions


The price of a toy car is \(\text{RM}215\). Naufal wants to buy \(8\) toy cars. How much money does it cost?

We need to calculate the total price for \(8\) toy cars.

So, we need to use multiplication. \(\text{RM}215\) is the price of a toy car, multiply by \(8\) to get the total price for \(8\) toy cars.

The decimal point separating ringgit and sen must be placed correctly after the multiplication of the values of money is performed.

\(\begin{array}{rr} \text{RM }\;\;\,\space2\space1\space5\space.\space0\space0 \\\times\quad\quad\quad\quad\quad\quad\quad\space8 \\\hline\text{RM }1\,\space7\space2\space0\space.\space0\space0 \\\hline \end{array}\)

From the calculation,