Question

1. 3.2 +

= 5

Explanation:

Step1: Let the unknown number be \( x \)

The equation is \( 3.2 + x = 5 \)

Step2: Solve for \( x \)

Subtract \( 3.2 \) from both sides: \( x = 5 - 3.2 \)
Calculate \( 5 - 3.2 = 1.8 \)

Answer:

The unknown number is \( 1.8 \)