题文
计算(能简算的要写出简算过程) ①7968-2968÷28×27 ②5.47-3+3.63-2 ③(8.8-23.4×)÷ ④0.3×1+6× ⑤12.5×2.5×12× ⑥[1.6-(-)×]÷. |
题型:解答题 难度:中档
答案
①7968-2968÷28×27, =7968-106×27, =7968-2862, =5106;
②5.47-3+3.63-2, =(5.47+3.63)-(3+2), =9-6, =3;
③(8.8-23.4×)÷, =(8.8-7.8)÷, =1÷, =;
④0.3×1+6×, =0.3×1+6×0.3, =0.3×(1+6), =0.3×8, =2.4;
⑤12.5×2.5×12×, =12.5×2.5×(4×8), =(12.5×8)×(2.5×4), =100×10, =1000;
⑥[1.6-(-)×]÷, =[1.6-×]÷, =[1.6-0.4]÷, =1.2÷, =1.8. |
据专家权威分析,试题“计算(能简算的要写出简算过程)①7968-2968÷28×27②5.47-359+3.63..”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
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