28.9 Plus 42 Addition :

Number 1	Number 2	Answer
28.9	42	70.9

How to calculate 28.9 plus 42 ?

Let's break down the addition of 28.9 and 4200 step by step:

   28.9      <-- Start with the rightmost column
+  4200
---------

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

   28.9
+  4200
---------
     9


    Add the digits in the rightmost column:
        8 + 2 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   28.9
+  4200
---------
     0.9


    Add the digits in the rightmost column:
        2 + 4 + 0 = 7
        Write down 7 in the rightmost column, carry over 0 to the next column.

   28.9
+  4200
---------
     70.9

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

The final result is 70.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
29	50	79	29 plus 50
29.1	55	84.1	29.1 plus 55
29.2	58	87.2	29.2 plus 58
6.3	4.4	10.7	6.3 plus 4.4
7.8	1.2	9	7.8 plus 1.2
5.7	8.4	14.1	5.7 plus 8.4