8 Plus 421.7 Addition :

Number 1	Number 2	Answer
8	421.7	429.7

How to calculate 8 plus 421.7 ?

Let's break down the addition of 00800 and 421.7 step by step:

   00800      <-- Start with the rightmost column
+  421.7
---------

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

   00800
+  421.7
---------
     7


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

   00800
+  421.7
---------
     07


    Add the digits in the rightmost column:
        8 + 1 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   00800
+  421.7
---------
     907


    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.

   00800
+  421.7
---------
     2907


    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.

   00800
+  421.7
---------
     42907

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

The final result is 42907.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.1	430.7	438.8	8.1 plus 430.7
8.2	437.7	445.9	8.2 plus 437.7
8.3	441.7	450	8.3 plus 441.7
5.3	4.7	10	5.3 plus 4.7
3.7	3.7	7.4	3.7 plus 3.7
0.7	5.3	6	0.7 plus 5.3