每本{#blank#}1{#/blank#}元，买{#blank#}2{#/blank#}本，共花{#blank#}3{#/blank#}元．

{#blank#}4{#/blank#}×{#blank#}5{#/blank#}={#blank#}6{#/blank#}(元)

3×3=        2×5=        2×8=         1×9=

5×9=        6×7=        49÷7=        4×8=

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

4×1{#blank#}5{#/blank#}4+1      2+2{#blank#}6{#/blank#}2×2       5×1{#blank#}7{#/blank#}6            6×3{#blank#}8{#/blank#}6+6+6