24÷6=4表示把{#blank#}1{#/blank#}平均分成{#blank#}2{#/blank#}份，每份是{#blank#}3{#/blank#}．

8×{#blank#}4{#/blank#}＝56        {#blank#}5{#/blank#}×8＝16       7×{#blank#}6{#/blank#}＝28

{#blank#}7{#/blank#}×8＝32      3×{#blank#}8{#/blank#}＝24         {#blank#}9{#/blank#}×8＝72

80-60=         50 +20=        85-80=      73 +20=

83-9=            47+8=          56-34 =       23+55=

3×7=             49÷7=        4×8=         32÷4=

5×9=              18÷9=         6×4 =        12÷2=

8×7+8=            3×7+26=       6×7-25 =     48÷8+45=

18÷3＝       36÷4＝       20÷5＝

4×2＝        45÷5＝        16－7＝

8÷4＝        62－44＝      2×5＝

20＋3＝      30÷5＝        25÷5＝

18÷2＝       7×2＝         15÷3＝

15＋6＝      28÷4＝        12÷3＝