# Math Flashcards

1
Q

What is the orders of operations?

A
```Parenthesis
Exponents
Multiplication
Division
Subtraction```

PEMDAS

2
Q

When adding and subtracting fractions, you must have a common _______, then you can subtract the ______.

A

denominator; numerator

3
Q

A

fractions

4
Q

When subtracting mixed numbers, you must convert them into an ______ fraction.

A

improper

5
Q

When multiplying fractions, you multiply the ______ and the ______.

A

numerator; denominator

6
Q

When working with percentages, a percent = a _______ divided by a ______.

If you are looking for just a part, you multiply the ______ x the ______.

If you are looking for the whole, you put the ______ over the ______.

A

part/whole

whole x %

part/percent

7
Q

When multiplying variables with exponents, these can be ______.

A

8
Q

When you have exponents in a division problem, you ______ them.

A

subtract

9
Q

When solving inequalities, such as > or

A

reversed

10
Q

Area of shapes:

```Triangle:
Square:
Rectangle:
Trapezoid:
Circle```

Perimeter of a circle?

A
```Triangle - 1/2bh
Square - s^2
Rectangle - l x w
Trapezoid - 1/2h (b1+b2)
Circle - pie(r)^2  / Perimeter - 2(3.14)(r)```
11
Q

Surface area is found by the _______ of each face on the shape.

A

12
Q

Surface area of a:

Sphere
Cube
Cylinder
Right rectangular prism

A

sphere - 4/3(3.14)(r)^3
cube - s^3
Cylinder - 3.14(r)^2(h)
Right rectangular prism - Bh

13
Q

Equation for the pythagorean theorem?

A

a2 + b2 = c2

14
Q

Average of all the terms and divide by the number of terms

A

Mean

15
Q

Middle number of the given set; the terms must be in order from highest to lowest

A

Median

16
Q

the number that occurs most frequently in a given set

A

Mode

17
Q

When a histogram is skewed to the left, the peak of data will be on the ______. When a histogram is skewed to the right, the peak of data will be on the ________.

A

right; left