(  {#blank#}1{#/blank#}  )×(   {#blank#}2{#/blank#} )=2400    (  {#blank#}3{#/blank#}  )×(  {#blank#}4{#/blank#}  )=1600

    (   {#blank#}5{#/blank#} )×(  {#blank#}6{#/blank#}  )=2400    (  {#blank#}7{#/blank#}  )×(  {#blank#}8{#/blank#}  )=1600

    (   {#blank#}9{#/blank#} )×(  {#blank#}10{#/blank#}  )=2400    (   {#blank#}11{#/blank#} )×(  {#blank#}12{#/blank#}  )=1600

(  {#blank#}13{#/blank#} )×(  {#blank#}14{#/blank#}  )=2400    (  {#blank#}15{#/blank#}  )×(  {#blank#}16{#/blank#}  )=1600

500×3=            900×2=          1200×5=

320×8=            125×8=          600×6=

14×22{#blank#}1{#/blank#}15×21         302÷5{#blank#}2{#/blank#}7×9        18×24{#blank#}3{#/blank#}24×18

12×13{#blank#}4{#/blank#} 23×2         8×700{#blank#}5{#/blank#}7×800      0÷37{#blank#}6{#/blank#}0×37