flash cards
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Variable | A symbol, usually a letter, that represents one or more numbers.
x = 3
🗑
|
||||
| Algebraic Expression | A mathematical phrase that can include numbers, variables and operation symbols. 3x
🗑
|
||||
| More Than | Indicates addition. x + 7
🗑
|
||||
| Less Than | Indicates subtraction. x - 7
🗑
|
||||
| Difference | Indicates subtraction. x - 7
🗑
|
||||
| Product | Indicates multiplication. 7n
🗑
|
||||
| Quotient | Indicates division. n/7
🗑
|
||||
| Equation | A mathematical sentence that uses an equal sign. c = 12n
🗑
|
||||
| Open Sentence | An equation that contains one or more variables. c = 12n
🗑
|
||||
| Simplify | To simplify a numerical expression, you replace it with its simplest name. For example, 2 * 8 + 2 * 3 is simplified to 22.
🗑
|
||||
| Exponent | Tells how many times a number (the base) is used as a factor. In the expression "2 to the 4th power" the exponent is 4.
🗑
|
||||
| Base | The number that is used as a factor in a power. In the expression "2 to the 4th power" the base is 2.
🗑
|
||||
| Power | A power has two parts, a base and an exponent.
🗑
|
||||
| Order of Operation | 1. Perform any operations inside grouping symbols. 2. Simplify powers. 3. Multiply and divide in order from left to right. 4. Add and subtract in order from left to right.
🗑
|
||||
| Evaluate | You evaluate an algebraic expression by substituting a given number for each variable. Then simplify the numerical expression using the order of operations.
🗑
|
||||
| Natural Numbers | The numbers in the set 1, 2, 3, . . .
🗑
|
||||
| Whole Numbers | The numbers in the set 0, 1, 2, 3, . . .
🗑
|
||||
| Integers | Numbers that can be written without fractions or decimals. They include zero and negative numbers. -2, -1, 0, 1, 2, . . .
🗑
|
||||
| Rational Numbers | Any number that can be written in the form a/b, where a and b are integers and b is not 0. All integers are rational numbers because any integer can also be written as n/1.
🗑
|
||||
| Irrational Numbers | Cannot be expressed in the form a/b, where a and b are integers. These are numbers where the decimal expression is nonrepeating and nonterminating. Pi is an example.
🗑
|
||||
| Real Numbers | Real Numbers is the set of irrational and rational numbers.
🗑
|
||||
| Counterexample | Any example that proves a statement false is a counterexample. You need only one counterexample to prove that a statement is false. (A proof to show that a statement is true may be more complicated.)
🗑
|
||||
| Inequality | A mathematical sentence that compares the value of two expressions using an inequality symbol, such as < or >.
🗑
|
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.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
noahegerton
Popular Math sets