7×{#blank#}1{#/blank#}=35，

5× 5   ={#blank#}2{#/blank#}

7×1 =       6 × 2 =        3×8 =       2×6 =

5×3 =       9 × 3 =        2×7 =       5 × 4 =

8×2 =       4× 8 =         3 ×9 =      7 × 3 =

 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=

9×6{#blank#}1{#/blank#}8×7             8×3{#blank#}2{#/blank#}3×7

7×6+23{#blank#}3{#/blank#}98-13-12    8×9{#blank#}4{#/blank#}30+16+26

5×7{#blank#}5{#/blank#}2×8+20         17-8+37{#blank#}6{#/blank#}6×8

四{#blank#}1{#/blank#}二十八    八{#blank#}2{#/blank#}七十二    {#blank#}3{#/blank#}八五十六    六九{#blank#}4{#/blank#}