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)
Place the decimal and the proper sign
-630 x 1.2 = 7560
-756.0
- 3 divided by 2/4
-6
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 (number outside the house) needs to become a whole number
What are the two methods for solving a problem that is dividing fractions?
you must do you the same thing to the inside of the division sign as the outside when you _______ ?
What is divide decimals
2 1/2 divided by - 3/4
- 3 1/3
Why are bees and wasps stupid?
because they stung Mr. Smurf in the face and it made him look like a crazy person.
-15.2 x 5.22
-79.344
1/2 divided by -1/8
-8/2 or -4
- 5.12 X .003
What is - .01536
Change 13/5 into a mixed number.
2 3/5
Draw the faces that help you remember the sign of the answer when you multiply of divide positive and negative numbers.
faces
-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
-2.5 divided by 1,000 -
-.0025
Simplify 12/18
6/9 or 2/3