Question

tim has a box of 15 markers. he gives 3 markers each to 4 friends. what expression can show the number of markers tim has left?

Explanation:

Step1: Calculate markers given away

Total markers given = $3 \times 4$

Step2: Subtract from initial markers

Markers left = $15 - (3 \times 4)$

Answer:

$\boldsymbol{15 - 3 \times 4}$ (or $\boldsymbol{15 - (3 \times 4)}$)