题文
递等式计算. (1)149+587+51 (2)85×0.75+15×75% (3)4×17×125 (4)(+)×(5)(-)×45 (6)[1-(×)]÷. |
题型:解答题 难度:中档
答案
(1)149+587+51, =149+51+587, =200+587, =787; (2)85×0.75+15×75%, =85×0.75+15×0.75, =(85+15)×0.75, =100×0.75, =75; (3)4×17×125, =4×125×17, =500×17, =8500; (4)(+)×, =×, =; (5)(-)×45, =×45-×45, =15-9, =6; (6)[1-(×)]÷ =[1-]×3, =1×3-×3, =3-, =2. |
据专家权威分析,试题“递等式计算.(1)149+587+51(2)85×0.75+15×75%(3)4×17×125(4)(18+..”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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