Room 4 did the Sumdog Contest which was a mix of addition, subtraction, multiplication, division and word problems.
The Sumdog Contest runs for seven days and each student has 1000 questions each to answer and you have to get as many questions right as you can out of the 1000 questions.
If you get some questions wrong you get put down on the scoreboard and if you get more right out of 1000 you get put up on the scoreboard. The school with the best score wins the contest. The school that gets the most points wins the contest gets a certificate for winning.