第31页

信息发布者：
$4.2$
$0.64$
$0.7$
$5.2$
$490$
$6$
$0.3$
$37$
$8$
$0.06$
$0$
$64$
=6.57×(99+1)
= $657$
=(3.9+6.1)+(0.56+0.44)
= $11$
=1.25×8×(0.4×2.5)
= $10$
=(3.75+6.25)÷2
= $5$
=7.8×(10-0.1)
= $77.22$
=0.81÷0.9÷0.6
= $1.5$
=0.144
≈0.85
=0.0108
=0.25
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