一四{#blank#}1{#/blank#}     二{#blank#}2{#/blank#}得六       三五{#blank#}3{#/blank#}

{#blank#}4{#/blank#}五一十     三{#blank#}5{#/blank#}得九      四四{#blank#}6{#/blank#}

{#blank#}7{#/blank#}四得八     五{#blank#}8{#/blank#}二十五     五六{#blank#}9{#/blank#}

6个6相加是{#blank#}3{#/blank#}，再加上一个6是{#blank#}4{#/blank#}．

7个7相加是{#blank#}5{#/blank#}，再加上一个7是{#blank#}6{#/blank#}．

12{#blank#}1{#/blank#}6×6

21÷3{#blank#}2{#/blank#}35÷7

10÷2{#blank#}3{#/blank#}5

42÷7{#blank#}4{#/blank#}24÷6

加法算式：

乘法算式：

28－7=       5×8 =        28－16 =         6×4 =          50－6 =

45+7 =        22+60=        6×7 =        7×8－8=         5×5+6=