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	43	72	29 plus 43
29.1	48	77.1	29.1 plus 48
29.2	54	83.2	29.2 plus 54
7.4	1.4	8.8	7.4 plus 1.4
4.4	1.4	5.8	4.4 plus 1.4
3.3	6.7	10	3.3 plus 6.7