Exploring Addition and Subtraction of Integers

The video tutorial covers the review of rational numbers, focusing on adding and subtracting integers without using a calculator. It explains the rules for handling integers with the same and different signs, provides practice problems, and checks answers. The tutorial also introduces the concept of additive inverse and demonstrates how to rewrite subtraction problems as addition using the 'Keep Change Flip' method. The session concludes with additional practice and a reminder to follow the agenda for further assignments.

Why is it important to practice adding and subtracting integers without a calculator?

• To improve mental math skills

• To make the process more challenging

• To save time during exams

• Because calculators are not allowed in assessments

Tags

CCSS.7.NS.A.1C

What is the result of adding two integers with the same sign?

• The sum is always negative

• The sum takes the sign of the larger number

• The sum is always positive

• The sum takes the sign of the integers

Tags

CCSS.7.NS.A.1C

If you add -7 and 12, what is the result?

• -19

• 19

• -5

• 5

Tags

CCSS.7.NS.A.1C

What is the additive inverse of 9?

• -1

• 0

• -9

• 9

Tags

CCSS.7.NS.A.1B

How do you rewrite the subtraction problem 6 - 7 using the Keep Change Flip method?

• -6 + 7

• -6 - 7

• 6 + (-7)

• 6 + 7

Tags

CCSS.7.NS.A.1C

What is the result of -3 - (-8) when rewritten as an addition problem?

• 11

• -5

• 5

• -11

Tags

CCSS.7.NS.A.1C

What is the result of 4 - 7 when rewritten as an addition problem?

• -3

• 11

• -11

• 3

Tags

CCSS.7.NS.A.1C

What is the result of adding -11 and -5?

• -16

• 16

• 6

• -6

Tags

CCSS.7.NS.A.1C

What is the result of 2 + (-6)?

• -4

• 4

• -8

• 8

Tags

CCSS.7.NS.A.1C

What is the result of adding 12 and 3?

• -15

• 15

• 9

• -9

Tags

CCSS.7.NS.A.1C