Ready Indiana Math Grade 7 Unit 1 Lesson 2 Integer Subtraction

Which pair shows equivalent expressions?

• 52 - 12 and -52 + 12

• 25 - 5 and -25 + (-5)

• 9 - (-2) and -2 + (-9)

• -30 - (-1) and 1 + (-30)

Which pair shows equivalent expressions?

• 45 - 8 and -45 + 8

• 13 - 3 and -13 + (-3)

• 8 - (-6) and -6 + (-8)

• -25 - (-8) and 8 + (-25)

Draw an arrow to show -4 - 6 on the number line below.

On the previous number line, -4 - 6 = ?

Micah is playing a game. After the first round, he has 4 points. During the second round, he lost 10 points. Which expression represents the total number of points Micah had after the second round?

• 4 - (-10)

• 4 + 10

• 4 + (-10)

• -4 + (-10)

Sarah is playing a game. After the first round, she has 10 points. During the second round, he lost 15 points. Which expression represents the total number of points Sarah had after the second round?

• 10 - (-15)

• 10 + 15

• 10 + (-15)

• -10 + (-15)

Megan bakes cookies to sell at a farmer's market in the summer. She made a profit of $50 last week. This week, she donated some cookies to the homeless shelter. Her profit for this week was -$12.

Write a subtraction expression to show Megan's total profit for the two weeks combined.

Megan bakes cookies to sell at a farmer's market in the summer. She made a profit of $50 last week. This week, she donated some cookies to the homeless shelter. Her profit for this week was -$12.

Write an addition expression to show Megan's total profit for the two weeks combined.

Megan bakes cookies to sell at a farmer's market in the summer. She made a profit of $50 last week. This week, she donated some cookies to the homeless shelter. Her profit for this week was -$12.

What is the difference between last week's profit and this week's profit?

Maya says that the distance between 4 and -4 on a number line is equal to |4 - (-4)| units.

Kevin says that the distance between 4 and -4 on a number line is equal to |4 + 4| units.

Who is correct? Explain.