We can add and subtract mixed numbers, each of which is the sum of a whole number and a fraction. When we need to add or subtract mixed numbers, we deal with the whole numbers separately from the fractions, and we find a common denominator for the fractions.
Read MoreYou can think about radicals (also called “roots”) as the opposite of exponents. We already know that the expression x^2 with the exponent of 2 means “multiply x by itself two times”. The opposite operation would be “what do we have to multiply by itself two times in order to get x^2?”
Read MoreWith scientific notation, we’re able to express really really big numbers without all the digits and write a simpler number that quickly tells us how big the number is. So scientific notation can be used to express really, really big numbers, but it can also be used to express really, really small numbers.
Read MoreWhen we divide one radical by another with the same type of root, we just divide the radicands and put the quotient under a radical sign. In other words, the quotient of the radicals is the radical of the quotient.
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