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Java Games: Flashcards, matching, concentration, and word search. |
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Algebraic Notations (Flashcards) for Practice
Problem Solving Strategy: Select Appropriate Notation.
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| Letters of the alphabet from a to z are used as variables to represent one or more unknown numbers. | a=-6 m=0.89 x=3 1/8 |
| A raised dot or parentheses is used to represent the operation of multiplication. | 7*n 4*x3(t) -9(y) |
| The product of a number and a variable or two or more variables can be expressed without a sign between the number and the variable. | -3w 16h 2/3b 4yz |
| The operations of addition, subtraction, and division are represented by the same symbols in algebra and arithmetic. | add: x+y subtract: 5-n divid: 18/b |
| Division is also indicated by using the fraction form, as in arithmetic. | 3/4 n/7 a/b 25/f t-6 / 9 |
| The symbol { } is used to enclose the member of a set. Three dots mean that the number in a set go on forever in the same pattern. | {1,2,3,4,5,6,...} |
| The equal sign the inequality symbols are used to compare numbers. | -5=-5 -3<0 c>-2 |
| A negative sign before a variable means the opposite of whatever number the variable represents. | If x=7, then -x=-(7)=-7. If x=-4, then -x=-(-4)=4. If x=0, then -x=-(0)=0. |
| The absolute value of a number n is written as [n] | [n] |
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