21.5 Plus 688 Addition :

Number 1	Number 2	Answer
21.5	688	709.5

How to calculate 21.5 plus 688 ?

Let's break down the addition of 021.5 and 68800 step by step:

   021.5      <-- Start with the rightmost column
+  68800
---------

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

   021.5
+  68800
---------
     5


    Add the digits in the rightmost column:
        1 + 8 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   021.5
+  68800
---------
     9.5


    Add the digits in the rightmost column:
        2 + 8 + 1 = 10
        Write down 0 in the rightmost column, carry over 1 to the next column.

   021.5
+  68800
---------
     09.5


    Add the digits in the rightmost column:
        0 + 6 + 0 = 7
        Write down 7 in the rightmost column, carry over 0 to the next column.

   021.5
+  68800
---------
     709.5

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

The final result is 709.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.6	690	711.6	21.6 plus 690
21.7	691	712.7	21.7 plus 691
21.8	699	720.8	21.8 plus 699
6.9	4.4	11.3	6.9 plus 4.4
2.9	8.4	11.3	2.9 plus 8.4
8	5.2	13.2	8 plus 5.2