(4.2+16又5∕4÷8)×21∕5

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/16 21:48:30
(4.2+16又5∕4÷8)×21∕5(4.2+16又5∕4÷8)×21∕5(4.2+16又5∕4÷8)×21∕5(4.2+16又5∕4÷8)×21∕5=(4.2+2.1)×21∕5=6.3×21/5

(4.2+16又5∕4÷8)×21∕5
(4.2+16又5∕4÷8)×21∕5

(4.2+16又5∕4÷8)×21∕5
(4.2+16又5∕4÷8)×21∕5
=(4.2+2.1)×21∕5
=6.3×21/5
=1.5