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Would You Pass School Maths Now?

You can use a pen and paper if you like. Based on GCSE Maths revision questions from BBC.

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  1. BuzzFeed / Flickr: franklinheijnen
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    Mode is the value that appears most often in a set of data, so you can have more than one mode. For example in the set of numbers 1, 1, 2, 2, 3, 4, 5 both 1 and 2 would be the mode.

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    5 multiplied by 3 is 15.

  3. BuzzFeed / Flickr: calsidyrose / Creative Commons
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    Add c to both sides, then subtract a to get c = b - a.

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    The median is the one in the middle when you arrange a set of numbers in order. In this case there are eight in total, so the median is half way between the 4th and 5th numbers in the set.

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    x = 3, 4, 5, 6, 7, etc.
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    x = 2, 3, 4, 5, 6, etc.
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    x = 2, 1, 0, -1, -2, etc.
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    ≥ means greater than or equal to, so the sequence starts at 2 and goes up.

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    Add the indices: 2 + 3 = 5.

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    Weak positive correlation.
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    Strong positive correlation.
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    Strong negative correlation.
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    I mean it's basically a straight line.

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    Weak positive correlation.
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    Weak negative correlation.
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    No correlation.
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    You couldn't draw a line to fit these points, so no correlation.

  9. BuzzFeed / Flickr: 54943750@N00 / Creative Commons
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    Multiplying two negative numbers makes a positive one.

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    If the next digit down is 5 or greater, you round up. We only want one significant figure, so that gives us 5000.

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    3 goes into 9 three times, so you have to multiply the 4 by three to get 12.

  12. BuzzFeed / Flickr: chadskeers / Creative Commons
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    2% is equal to 2 divided by 100, which gives you 0.02.

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    8 goes into 40 five times and into 24 three times. There's no larger number that goes into them both.

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    You add the indices. The trick is to remember that "b" is actually "b~1~", you just don't have to write the 1 out.

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    There are 8 green counters out of a total of 20. 8/20 simplifies to 2/5. Ta da!

 
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