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第66页

信息发布者：

2.072

2072

7.4

0.028

<

=

<

>

四

5.30

0.876,0.888

$ 0.\dot{8}\dot{7}\ \ ,0.87676...$

0.888

0.876

0.625

1.6

160

14

=4.5×20-4.5×0.1)

=90-0.45

=89.55

=(4.7+10.6-3)×6

=12.3×6

=73.8

=6.3÷0.9×2

=7×2

=14

=3.7÷10

=0.37

=6.4×1+6.4×0.25

=6.4+1.6

=8

=3.4×10.1-3.4×0.1

=3.4×10

=34

b

d

B

C

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