Evaluation Warning: The document was created with Spire.Doc for .NET.10以内加法1+0=11+仁22+0=21+2=32...
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数学版乘法口诀表1×1=11×2=2 2 ×2=41×3=3 2 ×3=6 3 ×3=91×4=4 2 ×4=8 3 ×4=12 4 ×4=161×5=5 2 ×...
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The document was prepared on January 2, 2021两位数乘法速算口诀 般口诀两位数乘法速算口诀 一般口诀首位...
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串珠调皮猴口诀材料:10mm黄珠×约235颗10mm白珠×37颗10mm红珠×2颗10mm黑珠×2颗8mm黄珠×7颗6mm黄珠×1颗...
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