4，9，16，25{#blank#}1{#/blank#}，{#blank#}2{#/blank#}，{#blank#}3{#/blank#}，{#blank#}4{#/blank#}

9元/个

 5×8=            6×7=             9×3=             2×8=

36÷9=            48÷6=            14÷2=            36÷6=

500+200=          800-400=          930-300=          450-150=

720+60=           960-600=          450+90=           860-80=

40÷7=            52÷8=            34÷6=            85÷9=

2×8{#blank#}1{#/blank#}18         4+4+4+4{#blank#}2{#/blank#}4+4 

9×4{#blank#}3{#/blank#}5×6       5元6角{#blank#}4{#/blank#}60角