8×9=         6×6=          4×7=         6×3=

7×6=         9×4=          8+9=          4×8=

9×7=         8×8=          3×5=         2×7=

9×9=         3+5=           1×6=          5×4=

6×{#blank#}1{#/blank#}<35    7×{#blank#}2{#/blank#}<48    29>{#blank#}3{#/blank#} ×8

21>{#blank#}4{#/blank#}×4    3×{#blank#}5{#/blank#}<30    46>{#blank#}6{#/blank#} ×9

①5×8-3=37(个)                           
②5×7+2=37(个)                           
③2×8=16(个)   3×7=21(个)   16+21=37(个)