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第77页

信息发布者：

192

C

A

B

C

B

C

110

144

1200

64

97

6

44

600

2300

150

=125×8×3

=1000×3

=3000

=(19+281)+(136+174)

=300+310

=610

=(4×25)×67

=100×67

=6700

=45×(200−1)

=45×200−45

=9000−45

=8955

=345−(200−3)

=345−200+3

=145+3

=148

=5×125×80+5×125×8

=50000+5000

=55000

=720÷9÷5

=16

=325×630+370×325

=325×(630+370)

=325×1000

=325000

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