42.1 Plus 21 Addition :

Number 1	Number 2	Answer
42.1	21	63.1

How to calculate 42.1 plus 21 ?

Let's break down the addition of 42.1 and 2100 step by step:

   42.1      <-- Start with the rightmost column
+  2100
---------

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

   42.1
+  2100
---------
     1


    Add the digits in the rightmost column:
        2 + 1 + 0 = 3
        Write down 3 in the rightmost column, carry over 0 to the next column.

   42.1
+  2100
---------
     3.1


    Add the digits in the rightmost column:
        4 + 2 + 0 = 6
        Write down 6 in the rightmost column, carry over 0 to the next column.

   42.1
+  2100
---------
     63.1

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

The final result is 63.1.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
42.2	27	69.2	42.2 plus 27
42.3	30	72.3	42.3 plus 30
42.4	38	80.4	42.4 plus 38
4.9	9.5	14.4	4.9 plus 9.5
6.6	2	8.6	6.6 plus 2
6.7	8.3	15	6.7 plus 8.3