How can we help students make sense of addition and subtraction of negative numbers?
Imagine a very strange bank account where you are only allowed to do two things...
Play this game to learn about adding and subtracting positive and negative numbers
In this game the winner is the first to complete a row of three.
Are some squares easier to land on than others?
Different combinations of the weights available allow you to make different totals. Which totals can you make?