数学门诊.(把不对的改正过来) (1)1.7×0.31+0.69×1.7 =1.7×(0.31+0.69)×1.7 =1.7×1×1.7 =2.89______ 改正: (2)0.25×12 =0.25×(4×3) =0.25×4+0.25×3 =1+0.75 =1.75______ 改正: (3)3.5×103 =3.5×100+3 =350+3 =353______ 改正: |
根据n多题专家分析,试题“数学门诊.(把不对的改正过来)(1)1.7×0.31+0.69×1.7=1.7×(0.31+0.69)×1.7=1.7×1×1.7=2.89______改正:(2)0.25×12=0.25×(4×3)=0.25×4+0.25×3=1+0.75=1.75____…”主要考查了你对 【运算定律和简便算法】 等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。
与“数学门诊.(把不对的改正过来)(1)1.7×0.31+0.69×1.7=1.7×(0.31+0.69)×1.7=1.7×1×1.7=2.89______改正:(2)0.25×12=0.25×(4×3)=0.25×4+0.25×3=1+0.75=1.75____”考查相似的试题有: