2.9 Plus 4 Addition :

Number 1	Number 2	Answer
2.9	4	6.9

How to calculate 2.9 plus 4 ?

Let's break down the addition of 2.9 and 400 step by step:

   2.9      <-- Start with the rightmost column
+  400
---------

    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.

   2.9
+  400
---------
     9


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

   2.9
+  400
---------
     6.9

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

The final result is 6.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
3	9	12	3 plus 9
3.1	16	19.1	3.1 plus 16
3.2	21	24.2	3.2 plus 21
9	1.2	10.2	9 plus 1.2
2.1	0.7	2.8	2.1 plus 0.7
8.3	0.4	8.7	8.3 plus 0.4