用你喜欢的方法计算.4.6+12.6-3.5 12-(1.5+4.8)1.54+2.08+3.467.41-2.96-3...
用你喜欢的方法计算.4.6+12.6-3.512-(1.5+4.8)1.54+2.08+3.467.41-2.96-3.045.83-(2.83+1.26)6.72+(9...
用你喜欢的方法计算.4.6+12.6-3.5 12-(1.5+4.8)1.54+2.08+3.467.41-2.96-3.04 5.83-(2.83+1.26)6.72+(9.12-3.72)
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(1)4.6+12.6-3.5
=17.2-3.5
=13.7
(2)12-(1.5+4.8)
=12-6.3
=5.7
(3)1.54+2.08+3.46
=(1.54+3.46)+2.08
=5+2.08
=7.08
(4)7.41-2.96-3.04
=7.41-(2.96+3.04)
=7.41-6
=1.41
(5)5.83-(2.83+1.26)
=5.83-2.83-1.26
=3-1.26
=1.74
(6)6.72+(9.12-3.72)
=(6.72-3.72)+9.12
=3+9.12
=12.12
=17.2-3.5
=13.7
(2)12-(1.5+4.8)
=12-6.3
=5.7
(3)1.54+2.08+3.46
=(1.54+3.46)+2.08
=5+2.08
=7.08
(4)7.41-2.96-3.04
=7.41-(2.96+3.04)
=7.41-6
=1.41
(5)5.83-(2.83+1.26)
=5.83-2.83-1.26
=3-1.26
=1.74
(6)6.72+(9.12-3.72)
=(6.72-3.72)+9.12
=3+9.12
=12.12
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