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简介:
(8.1-5.4)÷3.6+85.7
=2.7÷3.6+85.7
=0.75+85.7
=86.45
2.9×1.4+2×0.16
=4.06+0.32
=4.38
4.8×5÷0.3
=24÷0.3
=80
102×0.45
=100×0.45+2×0.45
=45+0.9
=45.9
4.3×0.25×0.4
=4.3×(0.25×0.4)
=4.3×0.1
=0.43
81×1.01
=81×(1+0.01)
=81×1+81×0.01
=81+0.81=81.81
7.4+42.6÷7.1
=7.4+6
=13.4
5.6÷40×8.1
=0.14×8.1
=1.134
12-3.5-6.3-2÷10
=12-3.5-6.3-0.2
=12-(3.5+6.3+0.2)
=12-10