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| def: an action or procedure that produces a new value from one or more input values |
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| Addition, subtraction, multiplication are all examples of ..... |
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| def: the result of adding numbers together. |
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| What is the sum of 23 and 19? |
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| def: the result of subtracting two numbers |
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| What is the difference of 77 and 29? |
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| def: the result of multiplying numbers together |
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| What is the product of -5 and -13? |
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| def: the result of dividing one number by another |
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| What is the quotient of 72 and 9? |
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| property that states that the order in which two numbers are added or multiplied does not change their sum or product, respectively: a + b = b + a or ab = ba |
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| what property is illustrated here: 2 + 3 = 3 + 2 |
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def: property that states that the product of a number and the sum or difference of two numbers is equal to the sum or difference or the two products:
x(a + b) = ax + bx. Or x(a – b) = ax – bx |
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| what property is illustrated here: 2(3 + 5) = 2x3 + 2x5 |
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| def: any symbol, usually a letter, that represents a number |
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| What do we call d in this equation: t = d/55? |
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| def: A combination of numbers variables and operators--but no equal sign! Its parts that are separated by the operators for addition and subtraction are called terms. |
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| 5, x and 2t + 9 are all examples of ... |
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| def: a mathematical sentence built from expressions using one or more equal signs |
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| d = rt and y = mx + b are examples of |
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| def: to replace each value of a variable in an expression or equation with another expression |
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| What do we say your are doing if you replace x with 2 in the equation y = 3x + 5 to get y = 3(2) + 5? |
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| def: to substitute numerical values for all variables in an expression and then compute the value of the expression |
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| When you substitute 2 for x in the equation y = 3x + 5 and get y = 11, we say that you __________ the expression on the right hand side. |
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