## 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, $$\text{RM}215.00\times8=\text{RM}1\,720.00$$.

## 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, $$\text{RM}215.00\times8=\text{RM}1\,720.00$$.