十2.4÷4/3
1) 7.6*75
= 7.6*100*(3/4)
= (760/4)*3
= 190*3 = 570
2) 2.4 ÷ 4/3 = 0.6/3 = 0.2
= 7.6*100*(3/4)
= (760/4)*3
= 190*3 = 570
2) 2.4 ÷ 4/3 = 0.6/3 = 0.2
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第1个回答 2015-03-15
=1.9X4X25X3=5.7X100=570