Overview
Develop four drawings showing step by step how you would find the answers to the following exercises conceptually using red and black chips. (Do not use the properties/algorithms.)
1. -6 + 9
2. 3 - (-4) Do not use the algorithm 'add the opposite,' which is the same as 'keep-change-change.'
3. 2 x -6
4. -3 x 2 Do not use the commutative property.