Adding and Subtracting Up to 1000

Tim made 89 on his first quiz and 74 on his second quiz. Which integer represents the change in Tim's grades?

• 89

• 15

• -74

• -15

When adding positive numbers on a number line, you move to the ____________.

• Right

• Left

When adding 18+6, what number do you start at?

• 24

• 12

• 6

• 18

• Adding (13+(-6))

• Adding the opposite (13+6)

• Subtracting (13-6)

-9 + (-5)

10 + (-4) = ?

-13 + 25

10 + 20 - 6

• 24

• 36

• -24

• -36

Ash is trying really hard to catch 'em all but Team Rocket sometimes steals some of his pocket monsters. Over the last 4 weeks here's what has happened:

Week 1: Ash caught 30 pocket monstersWeek 2: Team Rocket stole 50.Week 3: Ash caught 15 moreWeek 4: Team Rocket stole 20 more

By how many did Ash's pocket monsters change in the last 4 weeks.

• -35 pocket monsters in 4 weeks

• +25 pocket monsters in 4 weeks

• -25 pocket monsters in 4 weeks

• +35 pocket monsters in 4 weeks

28 + (-30)

• -2

• 2

• 58

• -58