1. Directed Numbers
Friday, 12 April 2019

2. Calculate the difference in temperature between Tuesday and Wednesday.
Example
The temperatures at 12 noon in Scotland over one week were recorded as follows:
Day
Temperature
Monday
−5°C
Tuesday
−2°C
Wednesday
−8°C
Thursday
0°C
Friday
1°C
Saturday
3°C
Sunday
−3°C
Calculate the difference in temperature between Tuesday and Wednesday.
Calculate the mean temperature for the week.

3. Example
The table below shows the minimum and maximum temperatures recorded in five different places.
Country
Minimum temperature
Maximum temperature
United Kingdom
−27.2°C
38.5°C
United States of America
−62°C
56.7°C
China
−52.3°C
49.7°C
Antarctica
−89.2°C
14.6°C
India
−50°C
50.6°C
Which place had the lowest temperature?
How many degrees difference was there between the maximum and the minimum temperature?
Which country has the greatest range between maximum and minimum temperature?