Integers and Rational Numbers

Write an integer to represent the following: The temperature decreased by 4 degrees.

Headscratcher:

What inequality sign would compare these two integers?

• >

• <

• =

Order -2, -7, -4, and -9 from LEAST TO GREATEST

• -2, -7, -4, -9

• -2, -4, -7, -9

• -9, -7, -4, -2

• -9, -7 -2, -4

Convert the following fraction into a decimal: $\frac{3}{4}$

• 0.75

• 0.66

• 0.25

• 0.45

Convert the percent to a decimal: 25%

• 0.255

• 0.30

• 0.25

• 1.25

What is 42% expressed as a decimal?

• 0.42
• 4.2
• 42
• 0.042

What is the opposite of -9? 

• 9
• 1/9
• 0
• -9

Does the graphic organizer correctly group the numbers?

• Yes
• No

Explain the error

• -1.2 isn't an integer.
• -2 isn't a whole number and 3.4 isn't a rational number.
• -2 isn't a whole number and -1.2 isn't an integer.
• The numbers are graphed correctly.

-14 could NOT be which type of number?

• Integer
• Whole
• Rational