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①25×6=

②156×4=

③432×5=

④57÷9=

⑤64÷7=

⑥58÷6=

①12×7{#blank#}1{#/blank#}17×2                            ②16个月{#blank#}2{#/blank#}1年6个月

③45+15+3{#blank#}3{#/blank#}(45+15)+ 3            ④48÷4{#blank#}4{#/blank#}84÷4

⑤0.90元{#blank#}5{#/blank#}9角                              ⑥500-284-16{#blank#}6{#/blank#}500-(284+16)

{#blank#}1{#/blank#}位数 {#blank#}2{#/blank#}位数 {#blank#}3{#/blank#}位数