The following exercises are just for practice - feel free to try them as many times as you'd like! Your answers are not saved.
Adding and Subtracting
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Exercise 6
Exercise 7
Exercise 8
Polynomials
Exercise 9
Exercise 10
Exercise 11
Exercise 12
Exercise 13
Exercise 14
Exercise 15
Exercise 16