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
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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