What is the remainder when dividing an integer by 10?
The units digit
How can you determine the mean really quickly in a collection of sets?
Use symmetry (distance of terms from eachother) to arrive at mean more quickly
What are the characteristics of a remainder?
The remainder is a non negative integer that is always less than the divisor
How do you find the divisor (y) when given the remainder and the decimal version of the dividend over the divisor (x/y)?
Decimal portion * the divisor (y) = the remainder
Even divided by even can only give what type of remainders?
Even
Is x an integer if x^2 is an integer?
We don’t know… x can be 2 or root2 (both these values squared are an integer)