8.4 Plus 421.7 Addition :

Number 1	Number 2	Answer
8.4	421.7	430.1

How to calculate 8.4 plus 421.7 ?

Let's break down the addition of 008.4 and 421.7 step by step:

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

    Add the digits in the rightmost column:
        4 + 7 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   008.4
+  421.7
---------
     1


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

   008.4
+  421.7
---------
     0.1


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

   008.4
+  421.7
---------
     30.1


    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.

   008.4
+  421.7
---------
     430.1

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

The final result is 430.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.5	426.7	435.2	8.5 plus 426.7
8.6	431.7	440.3	8.6 plus 431.7
8.7	432.7	441.4	8.7 plus 432.7
7	0.5	7.5	7 plus 0.5
7.9	5.1	13	7.9 plus 5.1
1.3	6.4	7.7	1.3 plus 6.4