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第73页

信息发布者：

右

两

3250

25

130

商不变的规律

290

38

1.67

0.053

30

3

0.3

25

12

120

2.5

2500

<

>

<

>

>

=

=

<

0.4

4.28

26.75

=0.85×200-0.85

=170-0.85

=169.15

=3.78×(99+1)

=3.78×100

=378

=72÷8÷0.6

=9÷0.6

=15

=7.2÷9+8.1÷9

=0.8+0.9

=1.7

=(0.08×1.25)×(2.5×0.4)

=0.1×1

=0.1

=80.8+9.5

=90.3

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