Instruction
Great! You can also use variables in expressions, like this:
temp_yesterday = 30 temp_today = 35 temp_difference = temp_today - temp_yesterday temp_difference
The code above will print 5, which is the difference between temp_today and temp_yesterday.
Exercise
Declare two variables:
population_awith a value of 10000,population_bwith a value of 5000.
Then, create a variable named total_population that will add the values of population_a and population_b. Finally, show the value of total_population.
Stuck? Here's a hint!
Declare total_population in the following way:
total_population = population_a + population_b



