2                                                            

2×5＝{#blank#}1{#/blank#}

22×55＝ {#blank#}2{#/blank#} 

222×555＝{#blank#}3{#/blank#}

2222×5555＝{#blank#}4{#/blank#} 

22222×55555＝{#blank#}5{#/blank#}  

222222×555555＝  {#blank#}6{#/blank#}

2222222×5555555＝ {#blank#}7{#/blank#}    

22222222×55555555＝{#blank#}8{#/blank#}

（4518＋6921）÷123＝{#blank#}1{#/blank#}

254×67－5436＝{#blank#}2{#/blank#}

47193＋50078={#blank#}1{#/blank#}

{#blank#}1{#/blank#}

{#blank#}2{#/blank#}

37037×3={#blank#}1{#/blank#}             37037×6={#blank#}2{#/blank#}

37037×9={#blank#}3{#/blank#}             37037×12={#blank#}4{#/blank#}

37037×{#blank#}5{#/blank#}=555555        37037×{#blank#}6{#/blank#}=666666

37037×{#blank#}7{#/blank#}=777777        37037×{#blank#}8{#/blank#}=999999