Solve Decimal Addition: 131.2 + 312.522 Step-by-Step

Solve the following exercise:

To avoid confusion in solving the exercise, we will first add two zeros to the number 131.2 as follows:

$131.200\\+312.522\\$

Now let's solve the exercise in order:

Let's connect the thousandths after the decimal point:

$0+2=2$

Let's connect the hundredths after the decimal point:

$0+2=2$

Let's connect the tenths after the decimal point:

$2+5=7$

Finally, let's connect the whole numbers before the decimal point accordingly:

$1+2=3$

$3+1=4$

$1+3=4$

And we obtain the following:

$131.200\\+312.522\\443.722$