Chapter 1 Prior Knowledge
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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| Whole Numbers | A whole number doesn't contain a fraction.
e.g. 0,1,2,3
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| Negative Numbers | Less than Zero
Negatives represented by RED on the numberline
e.g. -1, -55,
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| Fractions | Part of a whole.
· the bottom number (the denominator) says how many parts the whole is divided into
· the top number (the numerator) says how many you have.
je.g. 1/4, 19/10
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| Decimals | Often "decimal number" is also used to mean a number that uses a decimal point followed by digits as a way of showing values less than one.
Example: 1.9 is a decimal number (one and nine tenths)
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| Positive Integers | A set of integers to the right of 0 on a number line. e.g. 1,2,3,4,...
Represented by the color Black
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| rational number | Any number that can be made by dividing one integer by another. The word comes from "ratio".
e.g. 1/2 or .5 and 3/2 or 1.5
NOTE: Pi 22/7 is NOT rational
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| repeating decimal | A decimal that has a group of one or more digits that repeat endlessly. e.g. 1/3 or .333 and 2/3 or .666
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| terminating decimal | A decimal that has a finite number of nonzero decimal places e.g. 1.5, 2.34522
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| real number | set of numbers that consists of rational and irrational numbers
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| absolute value | How far a number is from zero.
Example "6" is 6 away from zero, but "-6" is also 6 away from zero.
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| square root |
The square root of a number is a value that, when multiplied by itself, gives the number.
Example: 4 × 4 = 16, so the square root of 16 is 4.
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| cube root | The cube root of a number is a special value that, when used in a multiplication three times, gives that number.
Example: 3 × 3 × 3 = 27, so the cube root of 27 is 3.
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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:
ldimauro
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