review of Algebra Terms
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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| 1, 2, 3, 4, 5, . . . are called? | Counting or natural numbers
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| the set of natural numbers plus the number zero | Whole numbers which include the number of zero
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| Who were the first to use zero to develop the place-value number system that we usetoday? | Arab and Indian scholars
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| Zero is the _____, because adding zero to a number does not change the number |
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| 1 is the _______ because multiplying a number by 1 does not change it. |
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| negative versions of the countingnumbers is called the ____? | integers
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| . . . –4, –3, –2, –1, 0, 1, 2, 3, 4, . . . | Whole numbers plus negatives
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| For every real number n, there exists its opposite, denoted – n, such that the sum of n and – n is zero, or | n + (– n) = 0
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| “–3” is one object—it stands for? | "negative three,”
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| zero is considered to be neither negative nor | positive
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| Add fractions to the set of integers, we get the set of | rational numbers
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| “rational” contains the word “ratio,” | which should remind you of fractions
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| bottom of the fraction is called | denominator
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| denomination—ittells you what size fraction we are talking about | fourths, fifths, etc.
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| The top of the fraction is called the | numerator
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| The denominator cannot be | zero! Numerator could be a zero
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| Fractions can be numbers smaller than 1, like 1/2 or 3/4 called? | proper fractions
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| they can be numbers bigger than 1 (called ______ ), like two-and-ahalf, which we could also write as 5/2 | improper fractions
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| All integers can also be thought of as rational numbers, with a denominator of 1: | 3= 3/1
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| There are numbers that cannot be expressed as a fraction, andthese numbers are called _____ because they are not rational. | irrational
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| Any number that represents an amount of something,such as a weight, a volume, or the distance between two points, will always be a | a real number
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| The real numbers have the property that they are ordered, which means that given anytwo different numbers we can always say that one is greater or less than the other. | For any two real numbers a and b, one and only one of the following three statements istrue:1. a is less than b, (expressed as a < b;2. a is equal to b, (expressed as a = b;3. a is greater than b, (expressed as a > b)
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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.
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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:
stamberger
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