0.25×[(2.8+4.4)÷1.2]怎么算

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0.25×[(2.8+4.4)÷1.2]怎么算0.25×[(2.8+4.4)÷1.2]怎么算0.25×[(2.8+4.4)÷1.2]怎么算0.25×[(2.8+4.4)÷1.2]=0.25×(7.2÷

0.25×[(2.8+4.4)÷1.2]怎么算
0.25×[(2.8+4.4)÷1.2]怎么算

0.25×[(2.8+4.4)÷1.2]怎么算
0.25×[(2.8+4.4)÷1.2]
=0.25×(7.2÷1.2)
=0.25×6
=1.5

=0.25×(7.2÷1.2)
=0.25×6
=1.5