Poke
2020
發(fā)布于 2025-05-22 · 圖片7
高思數(shù)學(xué)三下 10 四則混合運算
——計算專題第19講
多個乘法的提取公因數(shù)
利用倍數(shù)構(gòu)造公因數(shù)
利用相近數(shù)構(gòu)造公因數(shù)
題型:運用提取公因數(shù)、利用倍數(shù)關(guān)系構(gòu)造公因數(shù)、根據(jù)因數(shù)接近特點構(gòu)造公因數(shù)等方法進行加減乘除混合運算的巧算。通過觀察算式特點,找出公因數(shù)或創(chuàng)造條件提取公因數(shù),從而簡化計算過程,提高計算效率。
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2020