To study 7th grade avanced math, especially for Mr. Ring's class, at polo park.
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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| Distributive Property | To distribute a number through parenthesis by multiplying it. | show | 8(x+7) = 8x + 56; 5x(7 + 9y) = 35x + 45xy | The parenthesis are to do first, but they also mean to multiply. If you multiply a number to each term inside, you get distributive property.
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| show | To invert the sign of a number. | (7 ) (-1) = -7; -(-9) = 9 | -(y) = -y; -(-x) = x | Because the negative sign means to invert the sign, the multiply. Anything time 1 is equal to 1, so just invert the sign when multiplying -1.
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| Number sets | A set of numbers | Natural numbers = {1, 2, 3 ...} | show | Number set explanation pending.
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| Roots | Inverse of exponents, repeated division. | √9 = ±3 | √(x^2) = x | show 🗑
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| Scientific Notation | A notation used by scientists for very big and very small numbers. | 8,920,000 = 8.92 * 10 ^ 6 | 3,000,000x = 3x * 10 ^6 | show 🗑
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| Power | To multiply something by itself, in a computer represented usually by ^, but in paper written above & smaller than the base. | show | x(x) = x^2 | Power explanation pending.
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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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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:
Nitrogen7
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