Expressions With Positive And Negative Integers

Jackson and Aiden are playing a game of number magic. Jackson says, "If I have -9 magic points and Aiden gives me 4 more, how many magic points do I have now?" Can you help them figure it out?

• -5

• 5

• -13

• 13

A negative divided by a negative is a ________

• positive

• negative

Subtract.

- 10 - (- 9)

• 1

• - 1

• - 19

• 19

• -25

• -15

• 25

• 15

Express an integer: a debt of $50

• 50

• -50

Shaded circles represent negatives; Unshaded represent positives.

Which of the following expressions best represents the model?

• -7 - 5

• -7 + 5

• 7 - 5

• -5 - (-7)

-4 + 8

place the following numbers under their corresponding team.

pos. neg.

​ (a)   ​ (b)  

Who won the game? ​ (c)  

How much did they win by? ​ (d)  

• 8

• 7

• The negative team

• The positive team

• 4

Positive * Negative =

• Positve

• Negative

A scuba diver is swimming 12 feet below the water’s surface. The diver swims up slowly at 0.5 feet per second for 5 seconds; and then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second. What is the diver’s new depth? Which expression matches the situation?

• 12 + 0.5 + 0.4

• -12 + (0.5*0.4)

• -12 + (0.5*5) + (0.4*3)

• 12 + (-0.5*5) + (-0.4*3)

When dividing integers with different signs, the quotient is...

• Positive

• Negative