Number Sense
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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| natural numbers | all counting numbers
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| whole numbers | natural numbers and 0
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| integers | whole numbers and their opposites, and zero.
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| rational numbers | any number that can be expressed as a fraction, plus repeating and terminating decimals.
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| irrational numbers | numbers than cannot be expressed as a fraction.
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| real numbers | all rational and irrational numbers
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| square | found by multiplying a number by itself.
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| base | the number being multiplied.
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| exponent | the small number that tells how many times to mulitply the base.
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| radicand | the number under the radical sign
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| inverse operations | squaring a number and finding the square of a number. They undo each other.
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| perfect squares | have square roots that are integers
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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:
auriel
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