(  {#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

8×10={#blank#}1{#/blank#}

3×40={#blank#}2{#/blank#}

32×20={#blank#}3{#/blank#}

32×3＝         16×4＝           48×2＝           37＋54＝

16×60＝       63÷21＝          53－38＝         102×8＝