8.2 Directed numbers (challenging)

• 1

• -1

• 15

• -15

• -22

• -4

• 4

• -6

• 17

• -23

• 23

• -17

• -62

• 62

• -2

• 2

• 0

• -14

• -10

• 4

• -12

• 12

• 6

• 27

• -1

• 1

• -5

• 5

One evening in Moscow the temperature fell to

−16°C. By midday the next day the temperature was forecast to be 6°C.

What was the expected rise in temperature from the evening to midday the next day?

• 10 degrees

• -10 degrees

• 22 degrees

• 16 degrees

• -26

• 26

• 14

• -14

• -17

• 13

• 7

• 3