This Math quiz is called 'Exponents - Add and Subtract' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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An exponent is a small superscript number that tells you how many times a number is multiplied by itself. For example, if you have the number 4 and you want to multiply it by itself five times you could write it out as follows:
4 x 4 x 4 x 4 x 4 =
This can become too long to always write out so we use a shortcut using a superscript number. In this case the superscript number would be “5” because we want to multiply 4 times itself five times. To show this using a superscript it will look like:
45 = 4 x 4 x 4 x 4 x 4
We then solve it as: 4 x 4 = 16 x 4 = 64 x 4 = 256 x 4 = 1024
45 = 1024
We can then add and/or subtract using exponents as follows:
32 + 73 =
3 x 3 = 9
7 x 7 = 49 x 7 = 343
9 + 343 = 352
32 + 73 = 352
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