题文
下面各题怎样简便就怎样算
14.4÷0.125÷8 |
(+)×24× |
2.34×56-23.4×5.6 |
1.5×+0.8×5.5+2× |
1005÷[42×(-)] |
÷[1-(+)]. | |
题型:解答题 难度:中档
答案
(1)14.4÷0.125÷8, =14.4÷(0.125×8), =14.4÷1, =14.4;
(2)(+)×24×, =×24×+×24×, =+, =;
(3)2.34×56-23.4×5.6, =2.34×56-2.34×56 =2.34×(56-56), =0;
(4)1.5×+0.8×5.5+2×, =1.5×0.8+0.8×5.5+2×0.8, =(1.5+5.5+2)×0.8, =9×0.8, =7.2;
(5)1005÷[42×(-)], =1005÷[42×-42×], =1005÷[35-30], =1005÷5, =201;
(6)÷[1-(+)], =÷[1-], =÷, =×, =. |
据专家权威分析,试题“下面各题怎样简便就怎样算14.4÷0.125÷8(16+18)×24×152.34×56-..”主要考查你对 运算定律和简便算法,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:
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考点名称:整数,小数,分数,百分数和比例的混合计算