Wednesday, 13 April 2016
Friday, 8 April 2016
We were doing the divisibility of 3 today here is an example and then I will give you some instructions on how to do it. The number 102 is divisible by 3 because 1+2=3 and the zero doesn't do anything so that is how things are divisible by 3. Here are the instructions.
1. You have to make sure that the number is even.
2. Now add all the numbers together.
3. Do you think that the number is divisible by three?
Here are some of the numbers that are divisible by 3.
102,120, 222, 522, 252, 330
Consider all three-digit numbers formed by using different digits from 0, 1, 2, 3 and 5.
How many of these numbers are divisible by 6?