题文
计算下面各题,能简算的要简算. (1)975-384÷16×25 | (2)÷(+)+1.65 | (3)5.25+3-1.8+2 | (4)×1.5-1.5× | (5)12.5×0.25×32 | (6)36×(+)÷2% |
|
题型:解答题 难度:中档
答案
(1)975-384÷16×25 =975-24×25, =975-600, =375;
(2)÷(+)+1.65 =÷(+)+1.65, -×+1.65, =+1.65, =0.25+1.65, =1.9;
(3)5.25+3-1.8+2 =5.25+3.8-1.8+2.75, =5.25+2.75+(3.8-1.8), =8+2, =10;
(4)×1.5-1.5× =(-)×1.5, =3×1.5, =4.5;
(5)12.5×0.25×32 =12.5×0.25×8×4, =(12.5×8)×(0.25×4), =100×1, =100;
(6)36×(+)÷2% =[36×+36×]÷2%, =[10+8]÷2%, =18÷2%, =900. |
据专家权威分析,试题“计算下面各题,能简算的要简算.(1)975-384÷16×25(2)39144÷(56+14..”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
|