20.4 Plus 670.5 Addition :

Number 1	Number 2	Answer
20.4	670.5	690.9

How to calculate 20.4 plus 670.5 ?

Let's break down the addition of 020.4 and 670.5 step by step:

   020.4      <-- Start with the rightmost column
+  670.5
---------

    Add the digits in the rightmost column:
        4 + 5 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   020.4
+  670.5
---------
     9


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

   020.4
+  670.5
---------
     0.9


    Add the digits in the rightmost column:
        2 + 7 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   020.4
+  670.5
---------
     90.9


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

   020.4
+  670.5
---------
     690.9

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

The final result is 690.9.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
20.5	676.5	697	20.5 plus 676.5
20.6	682.5	703.1	20.6 plus 682.5
20.7	690.5	711.2	20.7 plus 690.5
2.1	3	5.1	2.1 plus 3
9.6	2.1	11.7	9.6 plus 2.1
5.5	2.7	8.2	5.5 plus 2.7