medium 9×9 Set 10 Table Grid
280x9=13=6x8x
2=9=6+6=4-
3=7=12+2=22+5
1-20x32x3=37=71-7+
73=311+95x14+
8-19=3=6=4=2=7=1-
16x5=53-43=1-
15+6=1=15+2=9=
2=7=74-1=13=
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