Question

1. - 4.5 - (-1.2) =

Explanation:

Step1: Recall the rule of subtracting a negative number

Subtracting a negative number is equivalent to adding its positive counterpart. So, $-4.5 - (-1.2)$ can be rewritten as $-4.5 + 1.2$.

Step2: Perform the addition of a negative and a positive number

To add a negative number and a positive number, we subtract the smaller absolute value from the larger absolute value and take the sign of the number with the larger absolute value. The absolute value of $-4.5$ is $4.5$, and the absolute value of $1.2$ is $1.2$. Since $4.5>1.2$, we subtract $1.2$ from $4.5$: $4.5 - 1.2 = 3.3$. Then, we take the sign of $-4.5$, which is negative. So, $-4.5 + 1.2=-3.3$.

Answer:

\(-3.3\)