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chapter 1 review m

test prep

absolute value the absolute value of a number is the number of spaces away from 0 it is on the number line.
additive inverse if you save 8$ and then you spend 8$ you are back where you started.
associative property addition changing the group of add ins doent chang the answer.
associative property multiplication changing the group of factors doent change the answer.
commutative property of addition changing the order of addends doesn't change the answer. example: 1.2+3.4=3.4+1.2
commutative property multiplication changing the order of the factors doesn't change the answer.
compatible numbers numbers that are easy to cumpute mentally. simply change the numbers in the problem problem to make the calcuaions easyer.
distributive property It is used to multiply a single term and two or more terms inside a set of parentheses.
identitive property of multiplication anything times 1 is itself.
identitive property of addition anything plus one 0 is itself.
integers negative and positive whole numbers and 0.
mean adding the total and dividing by how many numbers there are.
median the middle number.
mode the number that occurs most often.
opposites numbers that are the same distance from the number line but going opposite directions.
order of operations 1. work inside grouping symbols. 2 multiply and divide in order from left to right. 3 add and subtract in order from left to right.
outlier a data item that is much higher or much lower than other items in a set of data. an it can greatly affect the mean of a set of data.
range the differance between the greatest and least of values.
zero property the product of 0 and any number is 0.
Created by: jack knowles