65.
It is: 5 times 13 = 65
You have to know the basic multiplication to be able to do this kind of math. Well, 13 times 5 equals 65. 5 times 3 equals 15, carry your 1. 5 times 1 equals 5 plus the 1 you carried which is 6. Now bring the two numbers 6 and 5 and you will have 65.
Equation: 5x = 65 5x / 5 = 65 / 5 x = 13
5 times
65/5 = 13
325/5=65 times
13 times
4 times with remainder 5.
1 x 65, 5 x 13
65
5 x 13