7.575÷[(5.63-1.88)×0.2]
7.575 ÷ [(5.63 - 1.88) × 0.2]
7.575 ÷ [(5.63 - 1.88) × 0.2]
7.575 ÷ [(5.63 - 1.88) × 0.2]
7.575 ÷ [(5.63 - 1.88) × 0.2] ÷ [(5.63 - 1.88) × 0.2](3+5/7-2/3)×(1/5+1/7+1/13)-(1/5-1/7+1/13)×3+(1/5+ 2020-04-27 …
1.0.3:12=2.0.25:4=3.2.8:0.7=4.2.1:1.2=5.0.1:0.8=6 2020-07-17 …
A,B,C,D,E五个人,每两个人一组,组成10组,量的体重分别是82,82.5,83.5,85, 2020-07-17 …
一简便运算17/3-(17/3-15/8)9/1+2/1÷5/4+8/25/3×143-43-0. 2020-07-18 …
6÷3/8–3/8÷64/7×5/9+3/7×5/95/2-(3/2+4/5)7/8+(1/8+1 2020-07-18 …
4.5÷0.9﹦2.5×4﹦25×3.3×0﹦294×3≈420÷58≈2.5×0.4=0.3÷0 2020-07-19 …
基于先乘除,后加减,请问:基于先乘除,后加减,请问:3)原式=7/6-(2/5+3/5)×5/6= 2020-07-30 …
用不等号填空,并总结规律/(+5)+(+7)//+5/+/+7//(-5)+(-7)//-5/+/ 2020-08-01 …
设非空集合A{1,2,3,4,5,6,7},且当a∈A时必有8-a∈A,这样的A共有(15)个.{ 2020-08-01 …
设非空集合A{1,2,3,4,5,6,7},且当a∈A时必有8-a∈A,这样的A共有(15)个.{4 2020-12-07 …