Chapter 2: Test Preparation and Vocabulary Review
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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| What is the associative property? | The grouping does not matter.
Example: a+(b+c)=(a+b)+c
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| What is the commutative property? | The order does not matter.
Example: a+b=b+a
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| What is the distributive property? | States that the product of a number and a sum is equal to the sum of the individual products of the addends and the number.
Example: a(b + c) = ab + ac.
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| What is the identity property? | The number multiplied or added which allows me to get the number back again.
Example: 9+0=9
1a=a
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| What is a term? | Any number or variable connected by the addition or subtracting symbol.
Example: 4x+9
4x, 9
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| What are like terms? | Terms that contain the same variable(s).
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| What is a variable term? | Any term that contains a variable.
Example: 4x
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| What is a numeric term? | Any term made up of only numbers.
Example: 9
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| What is a constant? | The numeric term is also called the constant, and a numeric term is any term made up of only numbers.
Example: 9
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| What is an open sentence? | An equation that contains [a] variable(s).
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| What is an inequality? | A mathematical statement that contains greater or less than symbols; <, >.
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| What does an open circle mean? | The number is not included in our solution.
Not equal to - <, >
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| What does a closed circle mean? | Means the number is included in our solution.
= to - ≤, ≥
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| What are the steps for solving equations? | 1. Identify variable
2. Write equation
3. Solve
4. Sentence
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| What are the steps for solving inequalities? | When we multiply or divide by a negative number, you need to reverse the inequality sign.
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| What does -x mean? | -x means -1.
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| What does x mean? | x means 1.
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| Solve 2x-3y+5-5x+2y-8 | -3x-1y-3
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| Solve 3(2x-4) | 6x-12
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| Solve -(2x-4) | -2x+4
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| Solve 3(2x-4)-3(x-2) | 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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