The Canadian dollar is quite strange and totally different from the American dollar.

Firstly, there are no 1 and 2 cents coins. But there are 5, 10 and 50 cents coins and 1 and 2 dollars coins. Therefore if your bill is not a multiple of 5 it will be rounded to the multiple inferior or superior the closest. For example, if you need to pay 6.38$ in cash it will be rounded to 6.40$. But if you bill is 6.36$ you will pay 6.35$. Obviously if you pay by card the the bill is not rounded. 

Bills exist in 5, 10, 20, 50 and 100$. They are beautiful, colorful and have a particularity, they are made in polymer which makes them more resistant, safer and more ecological than the old ones. 

Each bill has a theme and represents a political personality and a building of the parliament. 

The 5$ bill represents Sir Wilfrid Laurier, Prime Minister from 1896 to 1911. It shows the highest tower of the Parliament: The Mackenzie tower. The theme is Canadarm2 and Dextre (the robotic innovation).

The 10$ bill represents Sir John A. Macdonal, Prime Minister from 1867 to 1873 and from 1878 to 1891. The building is the Library of the Parliament and the theme is the expansion of the railway in Canada in the years 1880.

The 20$ bill represents the queen Elizabeth II and the buidling is the Peace tower. The theme is the memorial of Canada at Vimy. 

There is also a commemorative 20$ bill for the Queen which is a little bit different from this one. 

The 50$ bill shows William Lyon Mackenzie King, Prime Minister from 1921 to 1930 and from 1935 to 1948. The theme is the CCGS, research icebreaker and the building is center building of the Parliament. 

The 100$ bill represents Sir Robert L. Borden, Prime Minister from 1911 to 1920. It shows the east building of the Parliament and the theme is the medical innovation. 

(Sadly I have never had a 100$ bill...)