第65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
0.06
2.80

=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
②
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