7
Exactly what it says:
double means multiply by 2, so double 2 means multiply 2 by 2 (to get 4)
and then add 5 to the result of this (to get 4 + 5 = 9).
Add
7
It can be known as: Multiply, Divide, Add, and Subtract...and more.
11
You have to add the sum up and divide it by the numbers there are there. Like 5 7 8 9 add it up it's 29 29 divide by 4. Which I'd 5 rem 4
increas
To attach or add
YOU add and multiply
ADD
to do it in your head its mental math.
In math the mean is the average. If you want the mean of a group of numbers you add them all together. Then you divide by the how many numbers there are.
in maths add means to add numbers together . it is usally added in to an equation.