速算题3题握民垂界果华

问题补充说明：238÷238 238/23941 1/3*3/4+51 1/4*4/5+61 1/5*56-5/63.6*31.4+43.9*6.4

238÷238+238/239

=1+238/23相仅掌立9

=477/239

41+1/3*3/4+51+1/4*4/5+61+1/5*5/6-5/6

=41+1/4+51+感顶六烧资维1/5+61+(1/5-1)*5/6

=41+1/4+51+1/5+61-2/3

=41+51+61+1/4+1/5-2/3

=153+(协伯无据方过散路才剂厚15+12-40)/60

=153-13/60

=(9180-13)/60

此跟多晚最明干=9167/60

3.6*31.4+43.9*6.4

行=(3+3/5)*(31+2/5)+(43+9/1观后耐河回劳0)*(6+2/5)

=(93+6/5+93/5+6/25)+(258+86/5+铁经农异斯进女烧黄迅善27/5+9/25)

=(6/5+93/5+86/5+27/5)+(6/25+9/25)+(93+258)

=212/5+3/5+351

=43+351

=394

标签：速算,题握,民垂界