Negative numbers test questions

1

The heating in Bruce's house switches on automatically when the outside temperature drops to -5°C.

One day last winter the outside temperature was 3°C.

How many degrees would the temperature have to drop in order for the heating to switch on?

2

When an aircraft leaves Prestwick Airport the outside temperature is 12°C.

The aircraft climbs to 10,000 metres and the outside temperature is -50°C.

Find the difference between these temperatures.

3

Derek compared the temperatures in the Sahara Desert and the North Pole.

The temperature in the Sahara Desert was 32°C.

The temperature at the North Pole was 46°C less than the temperature in the Sahara Desert.

What was the temperature at the North Pole?

4

One day last February, Eleana compared the temperature in Edinburgh with the temperature in Montreal.

The temperature in Edinburgh was 8°C.

The temperature in Montreal was -15°C.

Find the difference between these temperatures.

5

In July, the average temperature in Anchorage, Alaska is 9°C.

By January the average temperature has fallen by 26°C.

What is the average temperature in Anchorage in January?

6

Find 7 - 10

7

Find -3 + 10

8

Find 9 - (-5)

9

Find -6 + (-3)

10

Find -11 - (-11)