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题型:判断题 题类:常考题 难易度:普通
乘法的交换、结合律4859 10
23×25×4=23×(25×4)
①35×2×5= {#blank#}1{#/blank#}
②18×25×4 = {#blank#}2{#/blank#}
③22×30×44= {#blank#}3{#/blank#}
④60×(20×30)= {#blank#}4{#/blank#}
⑤326×50×8= {#blank#}5{#/blank#}
⑥42+99+68+1= {#blank#}6{#/blank#}
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