Leah Ch.2
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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| Commutative Property | a+b=b+a and ab=ba
order doesn't matter
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| Associative Property | a+ (b+c) = (a+b)+c and a(bc)= (ab)c
grouping doesn't matter
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| Identity Property | a+0=a and 1(a)=a
The number added or multiplied that allows me to get back to the original #
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| Distributive Property | a(b+c)= ab+ac
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| term | any number or variable connected by the addition or multiplication symbol
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| Like terms | terms that contain the same variable(s)
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| Variable term | any term that contains a variable
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| Numeric term | any term only made up of numbers
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| Constant | a term that has no variable
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| Open sentence | an equation that contains a variable
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| Inequality | mathematical statement containing <,>, ≠, ≤,≥
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| Open Circle | number not included in our answer <,>
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| Closed circle | the number is included in our answer =, ≤,≥
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| Solving equations | Inverse of adding/subtracting and inverse of multiplication/dividing
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| Solving inequalities | when we multiply or divide by a negative number, we reverse the inequality sign
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| -x means | -1x
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| x means | 1x
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| 2x-3y+5-5x+2y-8 | 2x+(-5x) -3y+2y 5-8
-3x -1y -3
-3x-1y-3
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| 3(2x-4) | 3(2x) 3(-4)
6x-12
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| -(2x-4) | -1(2x) -1(-4)
-2x+4
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| 3(2x-4)-3(x-2) | 3(2x) 3(-4) -3(1x) -3(-2)
6x-12-3x+6
3x-6
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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:
wimmerleah
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