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题型:单选题 题类:常考题 难易度:困难
3、4的乘法口诀(2——5的乘法口诀)1610 10
2×3+2={#blank#}1{#/blank#} 2×4={#blank#}2{#/blank#}
2×3-2={#blank#}3{#/blank#} 2×2={#blank#}4{#/blank#}
={#blank#}1{#/blank#} ={#blank#}2{#/blank#} ={#blank#}3{#/blank#}
乘法算式:{#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}
口诀:{#blank#}4{#/blank#}
24÷3{#blank#}1{#/blank#}2×2 21÷7{#blank#}2{#/blank#}24÷6 45÷9{#blank#}3{#/blank#}35÷5
2×3{#blank#}4{#/blank#}54÷9 81÷9{#blank#}5{#/blank#}18÷9 4×6{#blank#}6{#/blank#}24÷3
4 × 1 = 3 × 2 = 6 × 2 = 1 × 8 =
4 + 1 = 3 + 2 = 6 + 2 = 1 + 8 =
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