C12 · Badge-card sleeves
Fictional ordinary teaching source. Keep the worked response with adults/after-own teaching; it is never a preset for a held own response.
C12
Fourteen whole badge cards are available. Each complete sleeve needs three cards. Make as many complete sleeves as possible, leaving any leftover cards aside. How many complete sleeves can be made, and how many cards are left?
Adult worked possibility · after own attempt
Name 14 as the whole available collection and 3 badge cards as the required size of each complete pack. Take exactly 3 at a time into a new named pack; check that size before calling it complete. There are 4 complete packs and 2 whole badge cards aside. 3+3+3+3=12; 12+2=14. The requested number 4 names packs; 3 names members in one pack. A leftover group of fewer than 3 is not another complete pack. Count or rebuild all original members to check; repeated addition, known groups or a supported subtraction model are possible taught methods, not a required memorised division fact.