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题型:填空题 题类:常考题 难易度:普通
3、4的乘法口诀(2——5的乘法口诀)1588 10
{#blank#}1{#/blank#} ÷{#blank#}2{#/blank#}={#blank#}3{#/blank#}(套)
2×7 = 1×6= 2×5 = 3×2 =
2×4 = 8×1 = 8×2 = 2×9 =
7 ×2= 2× 2 = 5×1= 1×7 =
6×4{#blank#}1{#/blank#}6+4 4×3{#blank#}2{#/blank#}2+6 5×5{#blank#}3{#/blank#}5+5 3×3{#blank#}4{#/blank#}6
4×1{#blank#}5{#/blank#}4+1 2+2{#blank#}6{#/blank#}2×2 5×1{#blank#}7{#/blank#}6 6×3{#blank#}8{#/blank#}6+6+6
5×3= 4×4= 5×5= 3×4=
61-18= 30+23+20= 35+55-10= 60+16-6=
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