Order of Operations
What does the acronym PEMDAS stand for in algebra?
Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
Evaluate 21 - x + 2 * 5 when x = 7
24
Simplify by combining like terms: 2x^2 + 6x + 5 - 6x^2 + 3x + 5
-4x^2 + 9x + 10
Convert 420,000 to scientific notation.
4.2 x 10^5
How many colors are in a standard rainbow?
7
Evaluate the expression: 3(6 + 7)
39
Evaluate 5^2(30 - x) when x = 24
150
If A = 3x^2 + 5x - 6 and B = -2x^2 - 6x + 7, find A + B.
x^2 - x + 1
Convert 3.8 x 10^4 to standard regular notation.
38,000
Which primary color do you mix with yellow to get green?
Blue
9 - 3^2 / 3 + 5 * 2
16
Evaluate 5 + (r + 2)^2 when r = 4.
41
If A = 3x^2 + 5x - 6 and B = -2x^2 - 6x + 7, find A - B
5x^2 + 11x - 13
Convert 0.00897 to scientific notation.
8.97 x 10^-3
What is the freezing point of water in degrees Fahrenheit?
32 degrees Fahrenheit
Evaluate the expression: 40 / 4 - (5 - 3)^2 + 6
12
Simplify using the distributive property: 4(3a - 1)
12a - 4
Subtract 2y^2 + 5y + 8 from 6y^2 - 2y + 3.
4y^2 - 7y - 5
Convert 4.2 x 10^-3 to standard regular notation.
0.0042
What animal is commonly known as man's best friend?
Dog
Evaluate the expression: 45 / (8(5 - 4) - 3)
9
Total bases in baseball is S + 2D + 3T + 4H. Find Hank Aaron's total bases for S = 44, D = 8, T = 0, and H = 10.
100
Find the perimeter of a rectangle with length 3x^2 - 2x + 1 and width x^2 - 3x - 6. (P = 2L + 2W)
8x^2 - 10x - 10
Convert 0.00000007 into scientific notation.
7 x 10^-8
What is the capital city of the United States?
Washington, D.C.