1.8 Plus 20 Addition :

Number 1	Number 2	Answer
1.8	20	21.8

How to calculate 1.8 plus 20 ?

Let's break down the addition of 01.8 and 2000 step by step:

   01.8      <-- Start with the rightmost column
+  2000
---------

    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.

   01.8
+  2000
---------
     8


    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.

   01.8
+  2000
---------
     1.8


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

   01.8
+  2000
---------
     21.8

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

The final result is 21.8.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
1.9	23	24.9	1.9 plus 23
2	25	27	2 plus 25
2.1	27	29.1	2.1 plus 27
5	7.9	12.9	5 plus 7.9
9.3	9.3	18.6	9.3 plus 9.3
6.9	1.7	8.6	6.9 plus 1.7