Exploring Adding and Subtracting Rational Expressions

This lesson covers adding and subtracting integers, focusing on incorporating negative numbers. It explains how adding a negative is equivalent to subtraction and how subtracting a negative is like addition. The lesson includes examples and mixed practice problems, followed by word problems to apply these concepts in real-world scenarios.

What is the result of adding a negative number to a positive number, such as 3 + (-8)?

• 5

• -5

• -11

• 11

Tags

CCSS.7.NS.A.1C

How can subtracting a negative number be interpreted in terms of addition?

• As subtracting a positive number

• None of the above

• As adding the absolute value of the number

• As multiplying two negatives

Tags

CCSS.7.NS.A.1B

What is the result of -4 - (-3)?

• -1

• -7

• 1

• 7

Tags

CCSS.7.NS.A.1C

Calculate the result of 12 + (-4).

• -16

• -8

• 16

• 8

Tags

CCSS.7.NS.A.1C

What is the outcome of 19 - (-12)?

• 31

• -7

• 7

• -31

Tags

CCSS.7.NS.A.1C

Kelsey has $42 in her checking account and owes $65. What is her total balance?

• -$23

• $23

• -$107

• $107

Tags

CCSS.7.NS.A.1C

If the water level drops 13 feet from -4 feet, what is the new water level?

• -17 feet

• -9 feet

• 9 feet

• 17 feet

Tags

CCSS.7.NS.A.1C

What is the difference in elevation between Mount Everest and Mariana's Trench?

• 29,028 feet

• 36,070 feet

• -65,098 feet

• 65,098 feet

Tags

CCSS.7.NS.A.1C

What is the total change in Mr. Phillips' investment account after losing $50, gaining $200, and then losing $400?

• $250

• $300

• -$300

• -$250

Tags

CCSS.7.NS.A.1C

What was the final score of the golfer who won the Masters Tournament?

• -10

• 10

• 6

• -6

Tags

CCSS.7.NS.A.3