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题型:填空题 题类:常考题 难易度:容易
用2--5的乘法口诀求商1715 9
{#blank#}1{#/blank#}×4=16 6×{#blank#}2{#/blank#}=30 {#blank#}3{#/blank#}×6=12
16÷4={#blank#}4{#/blank#} 30÷6={#blank#}5{#/blank#} 12÷6={#blank#}6{#/blank#}
5×{#blank#}7{#/blank#}=10 {#blank#}8{#/blank#}×3=9 4×{#blank#}9{#/blank#}=20
( )+( )=( )(根)
( )×( )=( )(根)或( )×( )=( )(根)
答:
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