Calculate the Sum: 111.25 + 112.3 Decimal Addition

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 112.3 as follows:

$111.25\\+112.30\\$

Now let's solve the exercise in order:

We'll combine the hundredths after the decimal point:

$5+0=5$

We'll combine the tenths after the decimal point:

$2+3=5$

Finally, we'll combine the whole numbers before the decimal point accordingly:

$1+2=3$

$1+1=2$

$1+1=2$

And we get:

$111.25\\+112.30\\223.55$