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Distributive Property When there is a term next to a parentheses, and no sign between
the term and the parentheses, every term inside the parentheses must be multiplied by the
term outside the parentheses. 2(3x+7) = 2(3x) + 2(7)
only one with two operations
a) Multiplication over addition
b) Multiplication over subtraction
Additive inverse The term you add to another term to get 0: 3a+(-3a)=0
mean to find out the mean or average of a set of numbers, you will add all the numbers
in the set
mode In a set of numbers is the number that is represented the most. If no numbers are
repeated, there is no mode. On the other hand, if more than one number is repeated the same
amount, the set of numbers will have more than one mode
median In a set of numbers is the number that falls in the middle when the numbers are
listed from least to greatest. If 2 numbers fall in the middle you add them and divide the answer
by 2 (find their average).
range In a set of numbers is the difference between the greatest and the smallest
number in the set.
1/4 of what number 1/4x
what number is x=
, what number divided by 3 x/3
what number multiplied by 6 6x
The coefficient is always written on front of the variable.
what number squared x2
what number multiplied by itself x2
what number cubed x3
what number tripled 3x
what number doubled 2x
is/makes/leaves/equals/produces/as much as =when you see any of these words write
the = sign and the rest of the word problem goes on the other side of the = sign
subtraction flip words less than: leave space and write backwards
subtracted from: leave space and write backwards
Addition more than: +
added to: +
increased by: +
Multiplication the product of: x