7.7 Plus 421.7 Addition :

Number 1	Number 2	Answer
7.7	421.7	429.4

How to calculate 7.7 plus 421.7 ?

Let's break down the addition of 007.7 and 421.7 step by step:

   007.7      <-- Start with the rightmost column
+  421.7
---------

    Add the digits in the rightmost column:
        7 + 7 + 1 = 14
        Write down 4 in the rightmost column, carry over 1 to the next column.

   007.7
+  421.7
---------
     4


    Add the digits in the rightmost column:
        7 + 1 + 0 = 9
        Write down 9 in the rightmost column, carry over 0 to the next column.

   007.7
+  421.7
---------
     9.4


    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.

   007.7
+  421.7
---------
     29.4


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

   007.7
+  421.7
---------
     429.4

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

The final result is 429.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7.8	426.7	434.5	7.8 plus 426.7
7.9	433.7	441.6	7.9 plus 433.7
8	435.7	443.7	8 plus 435.7
1.6	3.3	4.9	1.6 plus 3.3
5.9	9.7	15.6	5.9 plus 9.7
8.5	8.8	17.3	8.5 plus 8.8