1. (86+19)×5=105×5=525
2. (318÷3)×6=106×6=636
3. 208×(32÷8)=208×4=832
4. (516+340)÷8=856÷8=107
5. 648÷(2×3)=648÷6=108
6. (204×3)÷6=612÷6=102