I– It's Nothing New: Adding with Pim (Step 4): I can add tenths. Example: 0.4+0.3=0.7, using he facts that are already known; 3+4, 30+40. 300+400 etc.
C– Calculations: Addition (Step 29): I can solve any 3d + 3d. with a particular focus on turning this 1 question into 3 questions…with the plan to get to the 'Abridged' and then eventually 'Brain' methods.