①(-23)+59+(-41)+(-59)②(-3.8)+2.7+(0.43)+1.3+(-0.2)③2又8/7+(-2又12/7)+5又5/3+(-1又8/7)+2又5/2+(-3又12/1)④(-3.75)+5又3/1+(-2又7/1

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/10 20:09:50
①(-23)+59+(-41)+(-59)②(-3.8)+2.7+(0.43)+1.3+(-0.2)③2又8/7+(-2又12/7)+5又5/3+(-1又8/7)+2又5/2+(-3又12/1)④(-3.75)+5又3/1+(-2又7/1

①(-23)+59+(-41)+(-59)②(-3.8)+2.7+(0.43)+1.3+(-0.2)③2又8/7+(-2又12/7)+5又5/3+(-1又8/7)+2又5/2+(-3又12/1)④(-3.75)+5又3/1+(-2又7/1
①(-23)+59+(-41)+(-59)
②(-3.8)+2.7+(0.43)+1.3+(-0.2)
③2又8/7+(-2又12/7)+5又5/3+(-1又8/7)+2又5/2+(-3又12/1)
④(-3.75)+5又3/1+(-2又7/1)+(-4又3/1)+3又4/3+(-1又7/6)

①(-23)+59+(-41)+(-59)②(-3.8)+2.7+(0.43)+1.3+(-0.2)③2又8/7+(-2又12/7)+5又5/3+(-1又8/7)+2又5/2+(-3又12/1)④(-3.75)+5又3/1+(-2又7/1
①(-23)+59+(-41)+(-59)
=-23-41
=-64
②(-3.8)+2.7+0.43+1.3+(-0.2)
=【-3.8-0.2】+2.7+1.3+0.43
=-4+4+0.43
=0.43
③原式=-五又四分之三+8+1
=三又四分之一
④原式=-4+1
=-3