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999.9*222.2+333.3*333.4简便计算

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/29 20:04:45
999.9*222.2+333.3*333.4简便计算
999.9×222.2+333.3×333.4
=3×333.3×222.2+333.3×333.4
=333.3×(3×222.2)+333.3×333.4
=333.3×666.6+333.3×333.4
=333.3×(666.6+333.4)
=333.3×1000
=333300