Find the smallest number which on being added 23 to it is exactly divisible by 32,36,48,and 96

None of the options you showed are it.

The range would be 13 because you’re finding the difference

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.