1.6 multiplying/dividing numbers reciprocal: the flipped rational number of a given number....
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1.6 Multiplying/Dividing Numbers
Reciprocal: The flipped rational number of a given number .
Multiplicative Inverse: The flipped rational number of a given number used in multiplication .
1. (x) = multiply, times, product of:
the product of 3 and 5 (3)5
2. (/) = division, quotient, fraction: The quotient of 3 and 5 3/5
In math we always translate English words into symbols:
REAL-WORLD:Your parents have provided you with a $1000 saving account . You want to buy clothes for school and you make a five withdrawals of equal amounts from your bank. The total amount you withdraw is $360. What is the change in your account balance each time you make a withdrawal?
Solution:Due to the fact that you are making equal withdrawals with a total of $360 we have:
$360 / 5 $72 each time
Thus our bank statement will show $ -72 each time we made the withdrawal.
Solution: In math we never divide fractions but we do use the keep-change-flip method.
Keep
× change
Flip
VIDEOS: Multiplication and
Division
Negatives:
http://www.khanacademy.org/math/arithmetic/absolute-value/mult_div_negatives/v/multiplying-positive-and-negative-numbers
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