8.28+8.28*9.2-8.28*0.

来源:学生作业帮助网 编辑:作业帮 时间:2024/12/01 00:47:04
8.28+8.28*9.2-8.28*0.
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8.28+8.28*9.2-8.28*0.
8.28+8.28*9.2-8.28*0.

8.28+8.28*9.2-8.28*0.
8.28+8.28*9.2-8.28*0.2
=8.28*(1+9.2-0.2)
=8.28*10
=82.8

8.28+8.28*9.2-8.28*0.2
=8.28×(1+9.2-0.2)
=8.28×10
=82.8

8.28+8.28*9.2-8.28*0.2
=8.28*(1+9.2-0.2)
=8.28*10
=82.8

8.28*(1+9.2-0.2)=8.28*10=82.8

可以看成8.28*9.2-(0.2*8.28-8.28)=8.28*9.2-8.28*0.8=8.28*8.4=?