Multiplying and dividing rational numbers

Leighandra was multiplying  4( 2 1/2).  Instead of changing the mixed number to an improper fraction.  She did 4(2) + 4(1/2).  What property did she use?

• Associative

• Commutative

• Distributive

• inverse

Tags

CCSS.7.NS.A.2C

Definition of Zero as a Divisor

ex) 11/0 = ?

• The quotient of any value and zero is considered undefined.

• If one value equals a second value and the second value equals a third value, then the third value equals the first.

• You must add the same value to both sides of the equals sign to maintain the equality of the values.

Tags

CCSS.7.NS.A.2C

 $A=\frac{bh}{2}$  is the area formula for a...

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Tags

CCSS.7.NS.A.2C

Evaluate the expression if x is 2/5 and y is -4:

x(y)

Tags

CCSS.7.NS.A.2C

• 9.25

Tags

CCSS.7.NS.A.2C

Simplify the expression

25 (-1.5) (- 3)

• 112.5

• 20.5

• 30

• -115.2

Tags

CCSS.7.NS.A.2C

Tags

CCSS.7.NS.A.2C

Select all that apply:

When ________________ fractions here's a tip, ____________, ______________, _______________!

• multiplying / keep / change/ flip

• dividing / keep / change / flip

• adding / keep / change / flip

• subtracting / keep / change / flip

Tags

CCSS.7.NS.A.2C

Q1. 8-8/8X8=8

• TRUE

• FALSE

• DON'T KNOW

Tags

CCSS.7.NS.A.2C

Solve. Put your answer in simplest form.

 $1\frac{3}{10}\ \cdot\ 1\frac{1}{3}$  

•  $\frac{39}{40}$  

•  $\frac{27}{15}$  

•  $1\frac{11}{15}$  

•  $1\frac{6}{15}$  

Tags

CCSS.7.NS.A.2C