Math Vocabulary
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| Additive Inverse | Two numbers whose sum is 0 are additive inverses of one another.
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| Multiplicative Inverse | Two numbers whose product is 1 are multiplicative inverses of one another.
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| Absolute Value | The distance of a number from 0. Since absolute value measures distance, the value is always positive. The absolute value symbol is a pair of vertical lines: | |.
For example, | -4| = 4 is read, “The absolute value of -4 equals 4.”
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| Integers | The set of whole numbers and their opposites and zero. Also, a number expressible in the form a or –a for some whole number a.
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| Long Division | the mathematical method for dividing large numbers into smaller groups or parts. It helps to break down a problem into simple and easy steps
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| Natural Numbers | the positive integers (whole numbers) 1, 2, 3, etc., and sometimes zero as well.
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| Zero Pair | A pair of numbers whose sum is zero. In the number line image below, numbers
connected with a colored bracket are zero pairs. Visually, zero pairs can also be represented with
two-color counters as seen below the number line.
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| Negative Numbers | a number that is less than zero
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| Opposite Numbers | A number with the same absolute value as a given number, but with a different sign.
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| Positive Numbers | any number greater than zero
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| Rational Numbers | A number expressible in the form a/b or -a/b for some form a/b The rational numbers include the integers. The image below shows some examples of rational numbers.
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| Repeating Decimal | A number whose decimal representation eventually becomes periodic (i.e., the
same sequence of digits repeats indefinitely. The repeating portion of a decimal expansion is
conventionally denoted with a vinculum ( ‾ ). For example, 1
3
= 0.3333 … = 0. 3
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| Terminating Decimal | A decimal with a finite number of digits. Also, if a decimal’s repeating digit is
zero, the decimal is called a terminating decimal. Examples of terminating decimals can be seen
below.
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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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