12.4 Plus 800 Addition :

Number 1	Number 2	Answer
12.4	800	812.4

How to calculate 12.4 plus 800 ?

Let's break down the addition of 012.4 and 80000 step by step:

   012.4      <-- Start with the rightmost column
+  80000
---------

    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.

   012.4
+  80000
---------
     4


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

   012.4
+  80000
---------
     2.4


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

   012.4
+  80000
---------
     12.4


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

   012.4
+  80000
---------
     812.4

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

The final result is 812.4.

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Number 1	Number 2	ANSWER:	HOW TO ?
12.5	809	821.5	12.5 plus 809
12.6	816	828.6	12.6 plus 816
12.7	819	831.7	12.7 plus 819
1	1.2	2.2	1 plus 1.2
6.7	0.8	7.5	6.7 plus 0.8
7.1	9.3	16.4	7.1 plus 9.3