26+23=      45+9=       78-45=       4×3－3=     

5×4=           3×5=        2×6=        2×4＋3=     

6×3=            2×2=        4×4=        5×5－1=     

三七{#blank#}1{#/blank#}         二{#blank#}2{#/blank#}十八

{#blank#}3{#/blank#}三十六       四七{#blank#}4{#/blank#}

二五{#blank#}5{#/blank#}         {#blank#}6{#/blank#}十二

{#blank#}7{#/blank#}十六          六六{#blank#}8{#/blank#}

三六{#blank#}9{#/blank#}             {#blank#}10{#/blank#}二十五

2×6=18{#blank#}1{#/blank#}6         18{#blank#}2{#/blank#}2=5×4      5{#blank#}3{#/blank#}1=3×2

3×4=6{#blank#}4{#/blank#}2              27{#blank#}5{#/blank#}9=6×3         4×6=20{#blank#}6{#/blank#}4

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