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题型:填空题 题类:常考题 难易度:容易
3、4的乘法口诀(2——5的乘法口诀) 1577 10
7×{#blank#}1{#/blank#}=35,
5× 5 ={#blank#}2{#/blank#}
2×5{#blank#}1{#/blank#}10
4×5{#blank#}2{#/blank#}19
3×5{#blank#}3{#/blank#}15
6×5{#blank#}4{#/blank#}31
两个乘数分别是5和6,积是30.
{#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}.
22>5×{#blank#}1{#/blank#}
2×{#blank#}2{#/blank#}<11
6×3= 6×5= 3×6= 6×4= 6×6=
2×4= 4×3= 5×5= 3×5= 4×4=
71-37{#blank#}1{#/blank#}34 25+5{#blank#}2{#/blank#}30 70{#blank#}3{#/blank#}90-19 86-68{#blank#}4{#/blank#}86-78
35+21{#blank#}5{#/blank#}45+11 67{#blank#}6{#/blank#}67-1 3+3{#blank#}7{#/blank#}3×3 3×5{#blank#}8{#/blank#}5+10
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