Answer with explanation:
→3.28+3.28+3.28
3.28 is added three times.
So, we can write it as
=3 × 3.28
=9.84
You can solve the problem , without multiplying ,3.28 by 3 , that is add 3.28 three times.
3.28
3.28
3.28
+
------------
9.84
So, we have solved the problem by two ways,by Multiplication and Addition.
→If you solve it by multiplication , the missing factor will be =3 × 3.28
Which is equal to 3.