Essential Vocabulary for Unit 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Variable | a symbol (usually a letter) used to represent an unknown number
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| Base (of a power) | the (big) number used in repeated multiplication/division
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| Exponent | the (small) number that tells us how many times to use the base in multiplication/division
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| Square of a Number | when you multiply that number by itself
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| Square Root of a Number | a number that, when used in multiplication two times, gives that number
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| Cube of a number | when you multiply that number by itself three times
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| Cube Root of a Number | a number that, when used in multiplication three times, gives that number
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| ± | tells you one value is positive and one value is negative
(example: ±3 = 3 and -3
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| Simplify | to do all possible operations (Parenthesis, Exponents, Multiply and Divide, Add and Subtract)
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| Expression | a mathematical phrase that can contain numbers, variables, and operations
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| Power | refers to the exponent; (also) refers to a base number and its exponent
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| Exponential Numbers | numbers that contain exponents
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| Scientific Notation | a way to write very small or very large numbers
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| Rational Numbers | numbers that can be written as a fraction
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| Irrational Numbers | numbers that cannot be written as fractions
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
cbaumler
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