题文
计算下面各题. 5.1÷4+4.9×25% 2×0.75+2.2× (1-37.5%)÷(+40%+2.1) |
题型:解答题 难度:中档
答案
(1)5.1÷4+4.9×25% =5.1×+4.9×, =(5.1+4.9)×, =10×, =2.5; (2)2×0.75+2.2× =2.2×0.75+2.2×0.25, =(0.75+0.25)×2.2, =1×2.2, =2.2; (3)(1-37.5%)÷(+40%+2.1) =(-)÷(++), =÷, =. |
据专家权威分析,试题“计算下面各题.5.1÷4+4.9×25%215×0.75+2.2×14(112-37.5%)÷(1..”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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