试题 试卷
题型:填空题 题类:常考题 难易度:容易
乘法的交换、结合律4888 10
96×35=35×
53×19=19×{#blank#}1{#/blank#}
98×85={#blank#}2{#/blank#}×98
53×85={#blank#}3{#/blank#}×{#blank#}4{#/blank#}
73×{#blank#}5{#/blank#} =85×{#blank#}6{#/blank#}
25×17×4×2
=(25×4)+(17×2)
=100+34
=134
19×30=30×{#blank#}1{#/blank#}
4×67×25
(220+13×50)÷29
试题篮