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place value system
number system in which the location, or place,where a digit is written gives it a different value
when using the associative property to make the addition of a group of numbers easier:look for two numbers whose sum is zero,look for two numbers whose sum is a multiple of ten,sum ends in o
rules for signed numbers ADDITION
if the signs are the same add the numbers,take the sign,if the signs are different subtract the numbers,take the sign of the larger number
multiply the numbers,if the signs are the same the answer is positive,if signs are different answer is negative
divide the numbers, if sign is the same answer is positive, if different the answer is negative
please,we want good parenthesis or one integer,solve the absolute value,excuse,exponent,my dear, multiplication or divisionread left to rightdo one oporation at a time
1st find the oporation
first integer- rewrite it,2 subtraction- change to addition 3) 2nd integer- write its additive inverse(4) apply the addition rules
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