2.56×15+14.4×1.5-0.3×150
=2.56×15+[(14.4÷10)×1.5×10]-[(0.3×10)×(150÷10)]
=2.56×15+[1.44×15]-[3×15]
=(2.56+1.44-3)×15
=(4-3)×15
=1×15
=15
给分吧,我的最全!
2.56×15+14.4×1.5-0.3×150
=(2.56+1.44-3)×15
=1×15
=15
2.56×15+14.4×1.5-0.3×150
=2.56×15+14.4÷10×1.5×10-0.3×10×150÷10
=2.56×15+1.44×15-3×15
=15(2.56+1.44-3)
=15[(2.56+1.44)-3]
=15(4-3)
=15×1
=15
2.56×15+14.4×1.5-0.3×150
=2.56×15+1.44×15-3×15
=(2.56+1.44-3)×15
=1×15
=15
2.56×15+14.4×1.5-0.3×150
=(2.56+1.44-3)×15
=1×15
=15