7.8 Plus 420 Addition :

Number 1	Number 2	Answer
7.8	420	427.8

How to calculate 7.8 plus 420 ?

Let's break down the addition of 007.8 and 42000 step by step:

   007.8      <-- Start with the rightmost column
+  42000
---------

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

   007.8
+  42000
---------
     8


    Add the digits in the rightmost column:
        7 + 0 + 0 = 7
        Write down 7 in the rightmost column, carry over 0 to the next column.

   007.8
+  42000
---------
     7.8


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

   007.8
+  42000
---------
     27.8


    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.

   007.8
+  42000
---------
     427.8

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

The final result is 427.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7.9	422	429.9	7.9 plus 422
8	426	434	8 plus 426
8.1	433	441.1	8.1 plus 433
8.7	4	12.7	8.7 plus 4
4	5.6	9.6	4 plus 5.6
0.7	3.5	4.2	0.7 plus 3.5