Select the numbers that divide exactly into 965, without a remainder.
2 *****
4 ******
5 ******
10
100
Only one of those is correct.
Is it 5?
A five on the right is a dead giveaway.
So, it's 5 right?...
yes
something that ends in five will not be divisible by an even number.
OH Ok, Thanks!
Now really, if in danger or in doubt, try it with a calculator. If none on your desk, use Google :)
Select the numbers that divide exactly into 344, without a remainder.
2
4 ******
5
10
100
but ANY even number can be divided by 2
so 2 and 4