1.8 Plus 4 Addition :

Number 1	Number 2	Answer
1.8	4	5.8

How to calculate 1.8 plus 4 ?

Let's break down the addition of 1.8 and 400 step by step:

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

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

   1.8
+  400
---------
     8


    Add the digits in the rightmost column:
        1 + 4 + 0 = 5
        Write down 5 in the rightmost column, carry over 0 to the next column.

   1.8
+  400
---------
     5.8

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

The final result is 5.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
1.9	10	11.9	1.9 plus 10
2	19	21	2 plus 19
2.1	22	24.1	2.1 plus 22
9.2	5.7	14.9	9.2 plus 5.7
4.5	4.5	9	4.5 plus 4.5
9.8	6.9	16.7	9.8 plus 6.9