Rewriting Subtraction as Addition

This video tutorial explains how to subtract integers by converting subtraction problems into addition problems. The instructor demonstrates that subtracting a positive number is equivalent to adding a negative number, and subtracting a negative number is the same as adding a positive number. Through various examples, the video illustrates the process of rewriting subtraction as addition and applying the rules for adding integers. The tutorial concludes with more complex examples to reinforce the concept.

What is the main goal of rewriting subtraction problems as addition problems?

• To avoid using negative numbers

• To make the problems more complex

• To simplify the process of finding the difference

• To change the numbers involved

Tags

CCSS.7.NS.A.1C

How can subtracting a positive number be rewritten?

• As adding a positive number

• As subtracting a negative number

• As subtracting a positive number

• As adding a negative number

Tags

CCSS.7.NS.A.1B

What is the result of 5 - 7 when rewritten as an addition problem?

• 5 - (-7)

• 5 - 7

• 5 + (-7)

• 5 + 7

Tags

CCSS.7.NS.A.1B

In the example 12 - 7, what is the equivalent addition problem?

• 12 - 7

• 12 + (-7)

• 12 - (-7)

• 12 + 7

Tags

CCSS.7.NS.A.1C

When adding integers with different signs, what should you do?

• Subtract the smaller absolute value from the larger and keep the sign of the larger

• Subtract their absolute values and change the sign

• Add their absolute values and keep the sign

• Add their absolute values and change the sign

Tags

CCSS.7.NS.A.1C

What is the result of -3 - (-4) when rewritten as an addition problem?

• -3 + 4

• -3 - 4

• -3 + (-4)

• -3 - (-4)

Tags

CCSS.7.NS.A.1B

In the example -63 - (-41), what is the equivalent addition problem?

• -63 - (-41)

• -63 + (-41)

• -63 - 41

• -63 + 41

Tags

CCSS.7.NS.A.1B

What is the result of 50 - 63 when rewritten as an addition problem?

• 50 + 63

• 50 - 63

• 50 + (-63)

• 50 - (-63)

Tags

CCSS.7.NS.A.1C

When adding two negative integers, what is the rule?

• Subtract the smaller absolute value from the larger and keep the sign of the larger

• Subtract their absolute values and change the sign

• Add their absolute values and keep the sign

• Add their absolute values and change the sign

Tags

CCSS.7.NS.A.1B

What is the result of -5 - 9 when rewritten as an addition problem?

• -5 - (-9)

• -5 + (-9)

• -5 - 9

• -5 + 9

Tags

CCSS.7.NS.A.1B