Question

2 roger is 16 years old. his sister betty is 3 years more than half of his age. write a numerical expression to represent bettys age.

Explanation:

Step1: Calculate half of Roger's age

$\frac{16}{2}$

Step2: Add 3 to the result

$\frac{16}{2} + 3$

Answer:

$\frac{16}{2} + 3$