Can You Pass This Math IQ Quiz?

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Math: It's a word to strike fear into the hearts of many. But this much-maligned school subject is actually the mother of all the sciences -- none of them could exist without it -- and it's also very important to everyday life. Let's face it, America has a double standard when it comes to illiteracy and "innumeracy." No one would be proud of a friend who said, "I hate books; I can barely read, and never do it if I don't have to." Yet we readily give ourselves and other people a pass for not knowing the most basic mathematic concepts, ones that allow us to calculate a 15 percent tip on a restaurant bill or figure out how many gallons of gas we'll need for a road trip.

Where do you fall on this spectrum? To help you figure it out, we've created a quiz covering concepts from high school math classes, mainly algebra and geometry. You won't need a calculator for this one -- and, honestly, shouldn't use one -- though in places a pencil and paper might be handy.

Are you ready to stare down the dragon of your school days, and proudly prove your "numeracy"? Sharpen up your No. 2 pencil and get to it!

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Which of these is a prime number?

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In its most basic definition, "x" in algebra stands for what?

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If 6x - 9 = 25, what is "x"?

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Which of these is one-third expressed as a decimal?

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Eighty percent expressed as a fraction is ...

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What is the top number of a fraction called?

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In geometry, angles are measured in _____.

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The interior angles of a triangle always measure up to ____ degrees.

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Which of these are also measured in degrees?

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A line between any two points on a circle is called a/an _____.

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What is 4 cubed?

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Squares and cubes are part of a system called _______.

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In scientific notation, the number in superscript is called the ______.

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In geometry, what is the minimum size of a point?

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How many points do you need to define a line?

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If one interior angle of a triangle is 75, what is the sum of the other two angles?

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A 122-degree angle is an _____ angle.

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An angle that is exactly 90 degrees is called a/an ______ angle.

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What is the maximum an obtuse angle can be?

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What number does the Greek letter "pi" represent?

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In the equation A = pi times r(squared), what does r stand for?

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A chord going directly across a circle at its widest point (e.g. 90 to 270) is called the ____.

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When you write 8/10 as 4/5, you are reducing it to what?

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What is 81 divided by 8 written as a fraction?

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What is 66 percent written as a fraction?

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A divisor is ...

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Which of the numbers in this list -- 1, 2, 11, 12, 121, 122, 212 -- is the median?

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What number would you divide the sum of this list -- 4, 12, 21, 24, 42 -- by to get the mean?

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Which of these geometric figures can be described as "a triangle with the top cut off"?

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If x cubed minus 5 equals 22, what is x?

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In the number 12.37859, which digit is in the hundredths place?

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Which of these is NOT an integer?

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A "pie wedge" of area inside a circle, defined by two radii, is called a/an ______.

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What is a number's absolute value?

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Which of these is the final digit of pi?

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