Understanding Subtraction with the Two Mark Rule

The video tutorial from MooMoo Math explains how to subtract signed numbers using the Two Mark Rule. It begins with examples of subtraction problems, demonstrating how to convert them into addition problems. The tutorial then introduces the Two Mark Rule, which involves changing the subtraction operation to addition and applying addition rules. The video provides step-by-step examples to illustrate the process, ensuring a clear understanding of how to handle signed numbers in subtraction.

What is the result of 5 minus negative 3?

• 8

• 3

• 2

• 5

Tags

CCSS.7.NS.A.1C

When subtracting signed numbers, what is the first step according to the Two Mark Rule?

• Change the sign of the first number

• Convert subtraction to addition

• Ignore the signs

• Add both numbers

Tags

CCSS.7.NS.A.1D

What do you do after converting subtraction to addition using the Two Mark Rule?

• Multiply the numbers

• Divide the numbers

• Use addition rules

• Subtract the numbers

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

If both numbers have the same sign after applying the Two Mark Rule, what should you do?

• Ignore them

• Add them

• Subtract them

• Multiply them

Tags

CCSS.7.NS.A.1C

What is the result of negative 6 minus 4 using the Two Mark Rule?

• Positive 10

• Negative 10

• Zero

• Negative 2

Tags

CCSS.7.NS.A.1C

In the example 8 minus negative 5, what is the result after applying the Two Mark Rule?

• Negative 3

• 8

• 13

• 3

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the final step in the Two Mark Rule when both numbers have different signs?

• Divide them

• Add them

• Multiply them

• Subtract them and take the sign of the larger number

Tags

CCSS.7.NS.A.1C

What is the result of 8 minus negative 5?

• Negative 13

• 13

• 3

• Negative 3

Tags

CCSS.5.NBT.B.7

What is the Two Mark Rule used for?

• Adding numbers

• Dividing numbers

• Converting subtraction to addition

• Multiplying numbers

Tags

CCSS.7.NS.A.1C

What is the result of negative 6 minus 4?

• Zero

• Negative 10

• Positive 10

• Negative 2

Tags

CCSS.7.NS.A.1C