Unit 2: Intro To Integers

Integers

100

before, loss, withdrawal, fewer, decrease, to the left, below, debt

(Hint: What kinda integers do these words describe)

What are... Words that describe Negative Integers

200

3 inches of rain fell

3

300

Integers 

(Hint: Definition)

What are... Positive and Negative Whole Numbers

400

Not negative or positive

(Hint: What integer does this describe?)

What is... 0

500

Sarah went to open up an account at the bank. She has her first check written for $150. She deposits her money into her new account. What integer represents how much money Sarah deposited into her account?

What is... 150

Comparing and Ordering Integers (Number line)

100

Compare using <,>, or =

2.15 and -4.67

2.15 > -4.67

200

Create a vertical Number line graphing 1/2 and its opposite

See board for answer

300

Order the numbers from least to greatest

-7/10, -1/10, -1/5, -3/10, -1/2

-7/10, -1/2, -3/10, -1/5, -1/10

400

An oceanographer takes readings at the following positions relative to sea level: -3.39 kilometers, -2.83 kilometers, -3.7 kilometers, and -1.95 kilometers. Order the positions from farthest from seal level to closest to sea level

-3.7km, -3.39km, -2.83km, and -1.95km

500

The position of a deep sea probe is -2 3/4 fathoms relative to sea level. After finishing taking data it moves to -2 7/8 fathoms relative to sea level. Which was deeper, the first mission or second?

The second mission -2 7/8 is deeper.

Absolute Value

100

What is the absolute value of 5/7

5/7

200

Compare using <,>,=

[6] and [-6]

[6] = [-6]

300

Absolute Value

(Hint: Definition)

What is... the distance between a number and zero

400

True or False: The absolute value of a number is less than the number

False: it is equal to or greater than the number

500

Order from least to greatest

[-3], -3, -5, [-1], 0, 7, [9]

-5, -3, 0, [-1], [-3], 7, [9]

Coordinate Plane

100

The x-axis is a ______ number line and the y-axis is a _____ number line.

(Hint: Vertical or Horizontal) 

Double your points!! What is first in an ordered pair, x or y? 

x-axis is Horizontal (left to right)

y-axis is Vertical (up and down)

x is first in an ordered pair (x,y)

200

What is the intersection of the x and y-axis called? 

(hint: its located at (0,0))

The Origin

300

How many quadrants are there? Draw a coordinate plane and label them

See board for answer

400

What quadrant would this ordered pair be graphed?

(3, 5)

Quadrant 1 because they are both positive

500

The pool is located at (0,0)

To get to your house from the pool, you walk 4 blocks east and 3 blocks South. What ordered pair corresponds to the location of your house?

(4, -3)

Adding and Subtracting Integers

100

Solve

-200 + 200 =

Double your points!! We learned a vocab word for this. What is this an example of?

0 - this is an example of a zero pair

200

Solve

6 + (-3) =

3

300

Solve

-10 - (-3) =

-7

400

You start hiking at an elevation that is 70 meters below base camp. You increase your elevation by 20 meters. What is the new elevation with respect to base camp?

50 meters below base camp

500

The temperature falls from 2 degrees Celsius to -3 degrees Celsius. What is the difference in these temperatures?

The difference is 5 degrees