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20 Cards in this Set
- Front
- Back
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What is the formula for "area"?
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A = L x W
area = length x width |
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What is the formula for "perimeter"?
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P = 2L + 2W
perimeter = 2(length) + 2(width) |
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What is "area"?
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the number of square units needed to cover the inside of a figure
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What is "perimeter"?
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the distance around a figure
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What is a prime number?
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a number that has ONLY two factors, itself and 1
example: 13 x 1 = 13 |
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What is "product"?
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the answer to a multiplication problem
example: the product of 2 and 6 is 12 |
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What is "quotient"?
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the answer to a division problem
example: the quotient of 18 and 3 is 6 |
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What is "difference"?
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the answer to a subtraction problem
example: the difference between 17 and 4 is 13 |
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What is "sum"?
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the answer to an addition problem
example: the sum of 5 and 9 is 14 |
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What is a "variable"?
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a letter of symbol that stands for an unknown number
example: p + 4 = 8 (p is the variable) |
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When a variable is next to a number, what are you supposed to do?
example: Solve y=4p, when p=7 |
mulitply when a variable is next to a number
example: y=4(7) y=28 |
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What are the rules for rounding?
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if the number to the right is:
0,1,2,3,4: the underlined number stays the same and everything else becomes a 0 5,6,7,8,9: the underlined number increases by one and everything else becomes a 0 |
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What does PEMDAS stand for?
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Parentheses, Exponents, Multiply, Divide, Add, Subtract
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What is a "remainder"?
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the amount left over after dividing
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What is a mixed number?
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made up of a whole number and a fraction
example: |
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What is a negative number?
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a number that is less than zero
example: -2, -36, -18 |
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What is the difference between an "expression" and an "equation"?
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an equation has an equal sign and an expression does not have an equal sign
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What is the first thing you do when adding and subtracting decimals?
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line up your decimals!!!
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What are "factors"?
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the numbers you multiply
example: 2 and 3 are the factors of 6 |
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What is a positive number?
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a number that is greater than zero
example: 14, 79, 103 |
