题文
(1)(12-4÷2.3)÷(10÷0.875) (2)7.08+8.13×12.9÷(86×40.65) (3)(2.25×-16÷9)×(54-26+181-174+46)×100 (4)[3-(0.2+)×4+0.5]÷13.5%. |
题型:解答题 难度:中档
答案
(1)(12-4÷2.3)÷(10÷0.875) =(12-4.6÷2.3)÷(÷), =(12-2)÷×, =÷×, =; (2)7.08+8.13×12.9÷(86×40.65) =7.08+104.877÷3495.9, =7.08+0.03, =7.11; (3)(2.25×-16÷9)×(54-26+181-174+46)×100 =(×-)×[(54+46)+181-(26+174)]×100, =(-)×(100+181-200)×100, =×81×100, =2475;
(4)[3-(0.2+)×4+0.5]÷13.5%. =[3-(+)×+]÷13.5%, =(3-×+)÷13.5%, =(3-+)÷13.5%, =1.35÷0.135, =10. |
据专家权威分析,试题“(1)(1227-435÷2.3)÷(1027÷0.875)(2)7.08+8.13×12.9÷(86×40...”主要考查你对 整数,小数,分数,百分数和比例的混合计算 等考点的理解。关于这些考点的“档案”如下:
整数,小数,分数,百分数和比例的混合计算
考点名称:整数,小数,分数,百分数和比例的混合计算
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