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题型:填空题 题类:常考题 难易度:容易
表内乘法2087 10
{#blank#}1{#/blank#}×8=56 2×{#blank#}2{#/blank#}=12
{#blank#}3{#/blank#}×5=40
4×6读作{#blank#}1{#/blank#}乘{#blank#}2{#/blank#},得{#blank#}3{#/blank#},口诀是{#blank#}4{#/blank#}.
5×9和9×5都可用口诀“五九四十五”计算.
1米{#blank#}1{#/blank#}100厘米 9厘米{#blank#}2{#/blank#}5米 5米+2米{#blank#}3{#/blank#}7厘米
5×6{#blank#}4{#/blank#}29 3+3+2{#blank#}5{#/blank#}3-3+1 37+21{#blank#}6{#/blank#}88-30
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