54.2-7/9+4.8-16/9+5/9=

赵正武2022-10-04 11:39:543条回答

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共3条回复
zhjhhzhl 共回答了22个问题 | 采纳率86.4%
54.2-7/9+4.8-16/9+5/9
=(54.2+4.8)+(5/9-7/9-16/9)
=59-18/9
=59-2
=57
1年前
红色qq风暴 共回答了4个问题 | 采纳率
57
1年前
zhouxin1013 共回答了898个问题 | 采纳率
54.2-7/9+4.8-16/9+5/9
=54.2+4.8-(7/9+16/9-5/9)
=59-2
=57
1年前

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咳咳,简便计算……35×13+350÷7054.2-2/9+4.8-16/90.7÷[(5/6-1/4)×24]
小宝851年前1
广州考生 共回答了18个问题 | 采纳率83.3%
35×13+350÷70
=5×91+5
=5×92
=460
54.2-2/9+4.8-16/9
=54.2+4.8-(2/9+16/9)
=59-2
=57
0.7÷[(5/6-1/4)×24]
=0.7÷[5/6×24-1/4×24]
=0.7÷[20-6]
=0.7÷14
=0.05