25+56= 3×4= 9×3= 5×5=
7×4= 56+19= 6×5= 7×2=
8×2= 8×1= 93-47= 4×5=
6×8-4= 4×8+3= 8×7+2=
5×8= 8×6= 9×1= 4×9=
9×9= 3×9= 6×7= 9×1=
9×5= 2×9=
6×5= 6×8= 7×8 = 6×9=
5×6= 8×6= 8×7= 9×6=
×8<57 40>6×
9×6= 8×5+6 = 6×8= 5×7= 8×8=
6×7= 9×9= 3×6= 2×6= 8×3+4=
□○□=□(元)
□○□○□=□(元)
□○□○□=□(元)
×4<31 8×<52 70>×8
×6<25 7×<36 30>×4