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:2024/04/29 06:34:43
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.
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=?