4.2×1.2-5.2×0.7的简便运算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/19 08:03:49
4.2×1.2-5.2×0.7的简便运算4.2×1.2-5.2×0.7的简便运算4.2×1.2-5.2×0.7的简便运算4.2×1.2-5.2×0.7=0.7×6×1.2-5.2×0.7=0.7×7.

4.2×1.2-5.2×0.7的简便运算
4.2×1.2-5.2×0.7的简便运算

4.2×1.2-5.2×0.7的简便运算
4.2×1.2-5.2×0.7 =0.7×6×1.2-5.2×0.7 =0.7×7.2-5.2×0.7 =0.7×(7.2-5.2) =0.7×2 =1.4