Multiply and Divide Integers
When multiplying or dividing integers if the signs are the same what sign will the product or quotient have?
What is positive?
When you multiply decimals, how do you know where the decimal goes in the answer?
Count the number of place values used in the problem.
How do you multiply fractions?
Multiply straight across (numerator x numerator and denominator times denominator)
you move the decimal to the left when you _________ ?
What is multiplying decimals
when multiplying or dividing fractions this step makes it a lot easier
What is cross simplifying
When multiplying or dividing integers and the signs are different what sign will the product or quotient have?
What is negative?
What needs to be changed in order to divide decimals?
The divisor needs to become a whole number
What is the first thing you should do when you are multiplying fractions?
Cross Cancel if you can
you must do you the same thing to the inside of the division sign as the outside when you _______ ?
What is divide decimals
how do you multiply mixed numbers?
change the mixed numbers to improper fractions. (What is called the horseshoe method)
If there are an even number of negative signs in your multiplication or division problem what sign will the outcome be?
What is positive?
15.2 x 5.22
79.344
What should we do when we finish multiplying or dividing the fractions?
SIMPLIFY!!!!
5.12 X .003
What is .01536
Change 13/5 into a mixed number.
2 3/5
Explain how you draw and use the triangle to help you when multiplying or dividing integers.
What is you draw a trianlge with 2 negatives and 1 positive in its corners. You cover the signs of the numbers in your problem and the sign left uncovered will be the sign of your answer.
86.52 divided by 4.2
20.6
11/5 x 7/2 =
77/10 or 7 7/10
182.76 divided by 4
What is 45.69
Turn 5 1/4 into an improper fraction
21/4
When dividing fractions, what is the vocabulary term for flipping the fraction over.
Finding the reciprocal.
788.68 divided by 2
394.34
6/12 divided by 3/4 =
2/3
you can not multiply percent's so you must change it to a _______ ?
What is decimal
Simplify 12/18
6/9 or 2/3