能简便的简便 40.35÷[43.2x2-59.5] 130.5-[10.2-5.2] 2.4x1.5+7.6x2分之3 1.5x2.5x0.8+4.5

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 11:23:41
能简便的简便 40.35÷[43.2x2-59.5] 130.5-[10.2-5.2] 2.4x1.5+7.6x2分之3 1.5x2.5x0.8+4.5

能简便的简便 40.35÷[43.2x2-59.5] 130.5-[10.2-5.2] 2.4x1.5+7.6x2分之3 1.5x2.5x0.8+4.5
能简便的简便 40.35÷[43.2x2-59.5] 130.5-[10.2-5.2] 2.4x1.5+7.6x2分之3 1.5x2.5x0.8+4.5

能简便的简便 40.35÷[43.2x2-59.5] 130.5-[10.2-5.2] 2.4x1.5+7.6x2分之3 1.5x2.5x0.8+4.5
40.35÷[43.2x2-59.5]
=40.35÷[86.4-59.5]
=40.35÷26.9
=1.5
130.5-[10.2-5.2]
=130.5-5
=125.5
2.4x1.5+7.6x2分之3
=2.4*1.5+7.6*1.5
=(2.4+7.6)*1.5
=10*1.5
=15
1.5x2.5x0.8+4.5
=1.5*2.5*0.4*2+4.5
=1.5*2*(2.5*0.4)+4.5
=3+4.5
=7.5