简便运算:58-92+42-8

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/05 20:43:45
简便运算:58-92+42-8
x){ɾ/Oxn=L-t-Mt-lm~OPN] (idB$ t1/.H̳k  B&VhTP@7Ud4#MMLK!}

简便运算:58-92+42-8
简便运算:58-92+42-8

简便运算:58-92+42-8
= (58+42)-(92+8)
=100-100
=0

58-92+42-8
=58-8+42-92
=92-92
=0

简便运算:
58-92+42-8
=(58-8)-(92-42)
=50-50
=0

58-92+42-8
=(58+42)-(92+8)
=100-100
=0