Addition of Positive and Negative Integers

Which expressions are equivalent?

• 35 - 14 and 35 + (-14)

• 21 - 8 and -21 + (-8)

• 10 - (-4) and -4 + (-10)

• 29 - (-5) and -5 + (-29)

Which expressions are equivalent?

• -35 - 14 and 35 + (-14)

• 21 - 8 and -21 + (-8)

• -28 - (-5) and 5 + (-28)

• 29 - (-5) and -5 + (-29)

The distance between 24 and -8 on a number line is 32. Hint: Remember distance is how far apart those two numbers are away from each other on a number line!!!!!

• true

• false

The distance between -7 and -12 on a number line is 5. Hint: Remember distance is how far apart those two numbers are from each other on a number line!!!!!

• true

• false

The distance between -5 and 14 on a number line is 9. Hint: Remember distance is how far apart those two numbers are away from each other on a number line!!!!!

• true

• false

The distance between 18 and -14 on a number line is 4. Hint: Remember distance is how far apart those two numbers are away from each other on a number line!!!!!

• true

• false

Steve is playing a trivia game. At the end of the first round, he has 8 points. During the second round, he lost 13 points. Which expressions represent the total number of points Steve has at the end of the second round?

• -8 + (-13)

• -8-13

• 8 + (-13)

• 8-13

Jenna is playing a trivia game. At the end of the first round, she has 7 points. During the second round, he lost 12 points. Which expressions represent the total number of points Jenna has at the end of the second round?

• 7-12

• -8-13

• 7 + (-12)

• 7 + 12

Kris makes and sells earrings. She made a profit of $55 last week. This week, she donated some bracelets to charity. Her profit at the end of this week can be represented by -$15.

Write a subtraction expression and an addition expression to represent Kris' total profit for the two weeks combined.

Kris makes and sells earrings. She made a profit of $55 last week. This week, she donated some bracelets to charity. Her profit at the end of this week can be represented by -$15.

What is the DIFFERENCE between last week's total profits and this week's total profits. Remember, difference means you are subtracting. Her first week she made a profit of $55. Her second week she made a profit of -$15. You need to SUBTRACT those two numbers from each other.