In order to figure out how many times does 3 go into 5, we should divide the number 5 with the number 3.
5/3=1.66
We can see that the number 3 goes 1 time into 5.
We can obtain the answer also if we start counting how much is 3 and then plus 3 and then plus 3
3+3=6 and 6 is bigger than 5, so in 5 there is only one 3.
