VARIABLES
TRAINGLES
EXPONENTS
PECENTS
MULTPICATIONS
100
What is a variable in math?
A letter or symbol used to represent an unknown number or a value that can change.
100
What are 2 facts about triangles?
A triangle must have three sides.
The sum of all interior angles must equal 180°
100
What is 10 to 3rd power?
1000
100
What are percents?
Percents are really fractions (or ratios) with a denominator of 100.
100
12x15=
180
200
Why do we use variables?
To represent numbers, write general rules, and solve for unknowns in equations.
200
Name two types of triangles:
Equilateral. Equilateral triangles have 3 equal sides and 3 equal angles of 60°
Isosceles. Isosceles triangles have 2 equal sides and 2 equal angles.
Right-angled. 1 of the angles is a right angle (90°) in right-angled triangles.
Scalene. Scalene triangles have no equal sides and no equal angles.
200
Can exponents be zero? yes or no?
The rule states that any term with zero as an exponent is equal to one
200
Convert to a percentage:
What is 12% of 50? ___________________
6
200
25x39=
975
300
How do you know which variable is dependent?
The dependent variable changes based on the value of the independent variable.
300
What is △?
The triangle symbol (△) is used in math to reference a triangle in a diagram
300
What is called an exponent?
The method of expressing large numbers in terms of powers.
300
Convert to a percentage:
What is 150% of 20? ___________________
30
300
189x658
124,362
400
Can a variable only be a letter?
No. While lowercase letters are common, variables can be symbols like boxes (), shapes, or even Greek letters like
400
This type of triangle has one 90 degree angle.
Right
400
What is 3 + 3 × 3 ÷ 3 + 3 = ?
9
400
Convert to a percentage:
16 is what percent of 80? _______________
20
400
2893x6584=
19,047,512
500
In the expression 3x+2=11, what is the value of x?
x=3 (subtract 2 from both sides toget 3x=9, then divide by 3.
500
A ________ triangle is one where all 3 angles measure less than 90 degrees.
Acute
500
Are exponents multiplying?
Yes,exponents are shorthand for repeated multiplication
500
Change 66/100 to a decimal
.66
500
6,589,315 x 9=
59,303,835