Question

b. ?·9 = 3 and 3 + 9 = ?

Explanation:

Step1: Solve for the unknown in multiplication

Let the unknown be \( x \). The equation is \( x \cdot 9 = 3 \). To find \( x \), we divide both sides by 9: \( x=\frac{3}{9}=\frac{1}{3} \).

Step2: Perform the addition

Now calculate \( 3 + 9 \). This is a simple addition: \( 3+9 = 12 \).

Answer:

The unknown in \(? \cdot 9 = 3 \) is \( \frac{1}{3} \), and \( 3 + 9 = 12 \).