题文
神机妙算细又巧!(能简算的要写出简算过程) 4×0.8×2.5×12.5 2.3×85+2.3×1536.5×99+36.5 0.65×14+87×65%- (-+)÷. |
题型:解答题 难度:中档
答案
①4×0.8×2.5×12.5, =(4×2.5)×(0.8×12.5), =10×10, =100;
②2.3×85+2.3×15, =2.3×(85+15), =2.3×100, =230;
③36.5×99+36.5, =36.5×(99+1), =36.5×100, =3650;
④0.65×14+87×65%-, =0.65×(14+87-1), =0.65×100, =65;
⑤(-+)÷, =(-+)×24, =×24-×24+×24, =16-12+4, =8. |
据专家权威分析,试题“神机妙算细又巧!(能简算的要写出简算过程)4×0.8×2.5×12.52.3..”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
|