Operations on rational numbers

 $-\left(-1.5\right)+4.2-1\ \frac{1}{2}+-4.2-\frac{1}{5}+.2$  

• -1.5

• 8.4

• 3.4

• 0

True Or False:
This is Identity Property
(4x + 2x) + 7x = 4x + (2x + 7x)

• True
• False

What is an example of the reflexive property?

• 23=23

• 123y=123x

• 0x=0x

• (1+2)+3=1+(2+3)

6(2.7 + 4) = 6(4 + 2.7) Name the property of operations illustrated by the statement.

Evaluate (Solve).

 $4x+2y\$ when  $x=\frac{5}{8}$  and $y=\frac{3}{7}$  

What property is this statement?

If 5 + 7 = 12, and  $\sqrt{144}$  = 12, 

then 5 + 7 = $\sqrt{144}$  

• Transitive Property

• Symmetrical Property

• Commutative Property

• Inverse Property

Use Integer/Rational Number Rules to find the Difference.

• A
• B
• C
• D

The sum of a rational number and an irrational number is irrational.

• Always true

• Sometimes true

• Never true

What is  $4.2\ -\ 5.4\ -\ \left(-9.2\right)+4.5$  

•  $12.5$  

•  $10.5$  

•  $-2.5$  

•  $3.5$