#math/mental $12 \times 9 =$ $108$ $13 \times 8 =$ $104$ $15 \times 7 =$ $105$ $17 \times 6 =$ $102$ $18 \times 6 =$ $108$ $21 \times 5 =$ $105$ $23 \times 9 =$ $207$ $25 \times 4 =$ $100$ $25 \times 8 =$ $200$ $26 \times 4 =$ $104$ $26 \times 8 =$ $208$ $27 \times 4 =$ $108$ $29 \times 7 =$ $203$ $34 \times 3 =$ $102$ $34 \times 6 =$ $204$ $34 \times 9 =$ $306$ $35 \times 3 =$ $105$ $36 \times 3 =$ $108$ $38 \times 8 =$ $304$ $41 \times 5 =$ $205$ $43 \times 7 =$ $301$ $44 \times 7 =$ $308$ $45 \times 9 =$ $405$ $51 \times 2 =$ $102$ $51 \times 4 =$ $204$ $51 \times 6 =$ $306$ $51 \times 8 =$ $408$ $52 \times 2 =$ $104$ $52 \times 4 =$ $208$ $53 \times 2 =$ $106$ $54 \times 2 =$ $108$ $56 \times 9 =$ $504$ $61 \times 5 =$ $305$ $63 \times 8 =$ $504$ $67 \times 3 =$ $201$ $67 \times 6 =$ $402$ $67 \times 9 =$ $603$ $68 \times 3 =$ $204$ $68 \times 6 =$ $408$ $69 \times 3 =$ $207$ $72 \times 7 =$ $504$ $76 \times 4 =$ $304$ $76 \times 8 =$ $608$ $77 \times 4 =$ $308$ $78 \times 9 =$ $702$ $81 \times 5 =$ $405$ $84 \times 6 =$ $504$ $86 \times 7 =$ $802$ $88 \times 8 =$ $704$ $89 \times 9 =$ $801$