Positive and Negative Numbers

-17-5 = ...

• -22

• 22

• -12

• 12

-7+ 8 = ...

• 1

• -1

• -15

• 15

9 - 18=...

• 18

• -9

• 9

• -8

-15 + 15 = ...

• -25

• 30

• -30

• 0

-13 - 7 = ...

• -5

• 6

• -20

• -6

-7°C rises by 2°C

• 5

• -9

• -5

• 9

-8°C rises by 4°C

• -4

• 4

• 12

• -12

8°C cools by 2°C

• -6

• 6

• 10

• -10

-8°C cools by 9°C

• -17

• -1

• 17

• 10

The temperature is -6⁰C and it cools down by 11⁰C. The new temperature is …

• 5

• 17

• -17

• -5