2×{#blank#}1{#/blank#}=18

9×{#blank#}2{#/blank#}=18

4÷{#blank#}1{#/blank#}=4     8×{#blank#}2{#/blank#}=32    {#blank#}3{#/blank#} ÷5=8

9×{#blank#}4{#/blank#}=36    72÷{#blank#}5{#/blank#}=8    42÷{#blank#}6{#/blank#}=7

9×5=      18+20=      58-47=     4×5=    8×7-7=

24+25=    35+12=      6×3=     26+13=    3×2×9=

5×7=      36-27=      45+13=    4×8=     68-19+19=

7+8=       14-13=      8×8=     36+2=    24+6+12=

7×□=42          6×9=7×9-□

□+8=56          7×8=□×7+7

□×7=28          8×□=4×□

8+8+4+4+4+4+4+4=4×□=8×□=□