五{#blank#}1{#/blank#}四十五

{#blank#}2{#/blank#}九三十六

{#blank#}3{#/blank#}九二十七

{#blank#}4{#/blank#}九十八

18={#blank#}2{#/blank#}×9

 5×8=            6×7=             9×3=             2×8=

36÷9=            48÷6=            14÷2=            36÷6=

500+200=          800-400=          930-300=          450-150=

720+60=           960-600=          450+90=           860-80=

40÷7=            52÷8=            34÷6=            85÷9=

42-7=        57-32=        5×3=        2×7=

9×4=         36+9=        3×8=        1×5=

35+25-50=               74-20-24=

3×2{#blank#}1{#/blank#}2×3                              1×4{#blank#}2{#/blank#}4＋1                 9×5{#blank#}3{#/blank#}5＋9

4×5{#blank#}4{#/blank#}31－10                            2×2{#blank#}5{#/blank#}2＋2                 6×3{#blank#}6{#/blank#}6＋6＋6