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题型:填空题 题类:常考题 难易度:容易
要解析 倍数和因数(含自然数、整数,倍数、因数,奇数、偶数,质数、合数,2、5、3倍数的特征)6357
5×1=
5×4=
5×7=
5×2=
5×5=
5×8=
5×3=
5×6=
5×9=
1+1+1+1+1={#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}
算式:{#blank#}1{#/blank#}×{#blank#}2{#/blank#}={#blank#}3{#/blank#}
{#blank#}1{#/blank#}七三十五
7×1 = 6 × 2 = 3×8 = 2×6 =
5×3 = 9 × 3 = 2×7 = 5 × 4 =
8×2 = 4× 8 = 3 ×9 = 7 × 3 =
5×{#blank#}1{#/blank#}<22 {#blank#}2{#/blank#}×7<38
11>{#blank#}3{#/blank#}×6 {#blank#}4{#/blank#}×6<30
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