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第111頁

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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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