8.4 Plus 12 Addition :

Number 1	Number 2	Answer
8.4	12	20.4

How to calculate 8.4 plus 12 ?

Let's break down the addition of 08.4 and 1200 step by step:

   08.4      <-- Start with the rightmost column
+  1200
---------

    Add the digits in the rightmost column:
        4 + 0 + 0 = 4
        Write down 4 in the rightmost column, carry over 0 to the next column.

   08.4
+  1200
---------
     4


    Add the digits in the rightmost column:
        8 + 2 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   08.4
+  1200
---------
     0.4


    Add the digits in the rightmost column:
        0 + 1 + 0 = 2
        Write down 2 in the rightmost column, carry over 0 to the next column.

   08.4
+  1200
---------
     20.4

    Continue to the left:
        There are no more columns to the left.

The final result is 20.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.5	18	26.5	8.5 plus 18
8.6	24	32.6	8.6 plus 24
8.7	32	40.7	8.7 plus 32
5.9	8.5	14.4	5.9 plus 8.5
5	2.8	7.8	5 plus 2.8
6.6	7.2	13.8	6.6 plus 7.2