Sets
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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| Sets | A group of things that have a certain property in common e.g. even numbers 2 4 6 8 10
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| An element | The numbers or objects in a set are called the elements
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| Cardinal Number # | This is the number of numbers within a set. For example Set A has 5 numbers{1,2,3,4,5} and Set B has 3 numbers {2,4,6}
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| Prime Number | This is any number that can be divided by itself and 1 only. Example {2, 3, 5, ...}
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| Null Set | This is a set that has no elements. It is given the symbol {}
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| Subset | When given two sets A and B. If all of the elements of B are also in A, then B is said to be a subset of A. Example Set A {1,2,3,4,5,6,7} and Set B {1,2,3,4,5}; B is a subset of A.
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| Union of two sets | The set of elements contained in both sets
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| Intersection of two sets | The set of elements common to both sets
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| Universal Set | The set that contains all elements
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| Complement of Set A | List all of the elements of the universal set except set A. In other words, all of the elements outside Set A.
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| A\B | This is the set of elements in A but not in B. In other words list A without B.
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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:
Clare Mahon
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