8.7 Plus 421.8 Addition :

Number 1	Number 2	Answer
8.7	421.8	430.5

How to calculate 8.7 plus 421.8 ?

Let's break down the addition of 008.7 and 421.8 step by step:

   008.7      <-- Start with the rightmost column
+  421.8
---------

    Add the digits in the rightmost column:
        7 + 8 + 1 = 15
        Write down 5 in the rightmost column, carry over 1 to the next column.

   008.7
+  421.8
---------
     5


    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.

   008.7
+  421.8
---------
     0.5


    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.

   008.7
+  421.8
---------
     30.5


    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.

   008.7
+  421.8
---------
     430.5

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

The final result is 430.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.8	424.8	433.6	8.8 plus 424.8
8.9	433.8	442.7	8.9 plus 433.8
9	434.8	443.8	9 plus 434.8
2.1	8.6	10.7	2.1 plus 8.6
8.9	3.4	12.3	8.9 plus 3.4
6.6	6.2	12.8	6.6 plus 6.2