5SK used MAB blocks today to build their schema on regrouping. They found that it was better to start with the ones column otherwise you would have to backtrack during the sum.
5SK used MAB blocks today to build their schema on regrouping. They found that it was better to start with the ones column otherwise you would have to backtrack during the sum.
Mackenzie says 5159 for the first one 🙂
5159
Great job Hannah
1. 5 159
2. 4 155
Well done Shahnti
1) 5 159
2) 4 155