10.4 Plus 420.9 Addition :

Number 1	Number 2	Answer
10.4	420.9	431.3

How to calculate 10.4 plus 420.9 ?

Let's break down the addition of 010.4 and 420.9 step by step:

   010.4      <-- Start with the rightmost column
+  420.9
---------

    Add the digits in the rightmost column:
        4 + 9 + 1 = 13
        Write down 3 in the rightmost column, carry over 1 to the next column.

   010.4
+  420.9
---------
     3


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

   010.4
+  420.9
---------
     1.3


    Add the digits in the rightmost column:
        1 + 2 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   010.4
+  420.9
---------
     31.3


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

   010.4
+  420.9
---------
     431.3

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

The final result is 431.3.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
10.5	426.9	437.4	10.5 plus 426.9
10.6	428.9	439.5	10.6 plus 428.9
10.7	435.9	446.6	10.7 plus 435.9
5.9	3.8	9.7	5.9 plus 3.8
1.3	5	6.3	1.3 plus 5
5.4	6.9	12.3	5.4 plus 6.9