第83页

信息发布者:
48
540
300
15
1
22
333
$40000-4$
9
4444
$500000-5$
9
55555
30
2
1122
D
C
=(48+52)+(135+65)
=100+200
=300
=347-47-86
=300-86
=214
=18×(69+31)
=18×100
=1800
=125×8×2
=1000×2
=2000
=630÷(35×2)
=630÷70
=9
=525÷[25×3]
=525÷75
=7