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题型:单选题 题类:常考题 难易度:容易
用9的乘法口诀求商1999 10
25-5{#blank#}1{#/blank#}25÷5
42÷7{#blank#}2{#/blank#}42+7
28÷7= 8×8= 89+9= 11÷4=
71-39= 7×8= 28+72= 20÷7=
50-19= 48÷6= 35÷7= 4×9=
{#blank#}1{#/blank#}×4<44 {#blank#}2{#/blank#}×9<65 8×{#blank#}3{#/blank#}<33
62>{#blank#}4{#/blank#}×7 26>3×{#blank#}5{#/blank#} 45>{#blank#}6{#/blank#}×6
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