8.4 Plus 421 Addition :

Number 1	Number 2	Answer
8.4	421	429.4

How to calculate 8.4 plus 421 ?

Let's break down the addition of 008.4 and 42100 step by step:

   008.4      <-- Start with the rightmost column
+  42100
---------

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

   008.4
+  42100
---------
     4


    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.

   008.4
+  42100
---------
     9.4


    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.

   008.4
+  42100
---------
     29.4


    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
+  42100
---------
     429.4

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

The final result is 429.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
8.5	425	433.5	8.5 plus 425
8.6	430	438.6	8.6 plus 430
8.7	436	444.7	8.7 plus 436
3.1	7.9	11	3.1 plus 7.9
2.9	6.2	9.1	2.9 plus 6.2
5.8	9.3	15.1	5.8 plus 9.3