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=1.9×101-1.9

=1.9×(101-1)

=1.9×100

=190

=(2.8+7.2)×4

=10×4

=40

=5.95÷(0.25×0.4)

=5.95÷0.1

=59.5

=15.6+0.7

=16.3

=(3.56+5.44)-(0.62+0.38)

=9-1

=8

=6.48÷[0.6×0.9]

=6.48÷0.54

=12

=1.8+9

=10.8

=2.64×4+7.36×4

=(2.64+7.36)×4

=10×4

=40

=3.91×8.5+3.91×1.5

=3.91×(8.5+1.5)

=3.91×10

=39.1

＞

＜

＜

＞

＞

＜

＞

=

53.38

17

53.38

1.7

21.3

63.1

390

101

B

0.16

=1.89×4×2.5

=1.89×10

=18.9

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