Students practice adding and subtracting integers and decimals in these pyramids. There are 6 different pyramids in total--3 with integers and 3 with decimals, with different levels of skill and/or logic needed to solve. In level 1 students have the entire bottom level of the pyramid filled in and need to add the 2 adjacent blocks to get the sum which is placed on the block on top of it. In level 2, students have the block on the left side completed and need to scale up and down to complete the entire pyramid. In the most challenging level, students have scattered blocks and use their logic skills to fill in the missing blocks.