Question

find the sum of 0.3 and 0.4

Answer 1

0.3+0.4=0.7 because first,the zeros don't really mean anything and you need to add the decimals then you could add 3 + 4 which is 7.Next, put the decimal then zero to get your answer.

Answer 2

         0.3
+
         0.4
------------------
          0.7