题文
正确、合理、灵活的计算下面各题. ①(1.75×0.2+1.75×0.8)÷17.5 ②10-(6-2) ③243×8+75.7×82.5 ④×1+125%+0.625×1.25 ⑤0.91÷+1.25×10.9 ⑥(+-)÷. |
题型:解答题 难度:中档
答案
(1)(1.75×0.2+1.75×0.8)÷17.5, =1.75×(0.2+0.8)÷17.5, =1.75×1÷17.5, =1.75÷17.5, =0.1;
(2)10-(6-2), =10-6+2, =4+2, =6;
(3)243×8+75.7×82.5, =(24.3+75.7)×82.5, =100×82.5, =8250;
(4)×1+125%+0.625×1.25, =1.25×(+1+0.625), =1.25×2, =2.5;
(5)0.91÷+1.25×10.9, =1.25×(0.91+10.9), =1.25×11.81, =14.7625;
(6)(+-)÷, =×24+×24-×24, =20+21-10, =31. |
据专家权威分析,试题“正确、合理、灵活的计算下面各题.①(1.75×0.2+1.75×0.8)÷17...”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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