G6 L95 Intro to Integers

G6 L95 Intro to Integers

Number Lines

What do the arrows on both sides mean?

How could we label this number line?

What do you call numbers to the right of zero? To the left of zero?

Intro

• Mateus has $6 and Kayller owes his brother $6. Who is richer and why?

• Where would each number go on a number line?

• Isadora owes me $5 and NIcolas owes me $6. Who is richer?

• What numbers are represented by each situation?

Vocabulary

• Integers: the numbers …-3, -2, -1, 0, 1, 2, 3, …

• Negative Integers: integers that are less than 0. 

• Positive Integers: integers that are greater than 0. 

• Is 0 positive or negative?

• Absolute Value: the distance of a number to zero

• Opposites (Additive Inverses): Positive and negative numbers whose sum is zero. 

Fill in the Blanks

What is the opposite of 7?

Fill in the Blanks

What is the opposite of -100?

Integers and Opposites

• What integer represents "losing 3 kg"

• What integer and situation represents the opposite?

• What integer represents "buying 8 tacos"

• What integer and situation represents the opposite?

• What integer represents "paying R$100"

• What integer and situation represents the opposite?

Fill in the Blanks

Write an integer that represents "earned $16"

Fill in the Blanks

Write an integer that represents "22 degrees below zero"

Fill in the Blanks

Write an integer that represents "$50 raise in salary"

Fill in the Blanks

Write an integer that represents "8 point penalty"

Fill in the Blanks

Write an integer that represents "87 meters above sea level"

Multiple Choice

Which situation could the integer -50 represent?

• An increase of $50 in a bank account

• The temperature on a warm summer day

• The distance driven on the way to the beach

• A decrease of 50 employees

Multiple Choice

Name the integer...the opposite of -17

• 1

• -17

• 7

• 17

Multiple Choice

What is the value of E?

• -1

• -2

• 1

• 2

Multiple Choice

Which letter on the number line represents -1?

• A

• B

• C

• D

Multiple Choice

What is the opposite of the integer on the number line?

• 0

• -7

• 7

• 1

Multiple Choice

What is the opposite of -3?

• 3

• 0

• -1/3

• 1/3

Multiple Choice

Negative integers are on the ______ side of zero while Positive Integers are on the ________ side of zero.

• left, left

• right, right

• right, left

• left, right

Multiple Choice

What is the integer to show one hundred meter below sea level?

• 100

• +100

• -100

• 1.00