3/4、75%都是0.75,提取0.75
0.75x(1.6+2.7-0.3)
=0.75x4
=3
0.75×1.6+3/4×2.7-75%×0.3
=0.75X1.6+0.75X2.7-0.75X0.3
=0.75X(1.6+2.7-0.3)
=3/4x4
=3
0.75×1.6+3/4×2.7-75%×0.3
=0.75×1.6+0.75×2.7-0.75×0.3
=0.75×(1.6+2.7-0.3)
=0.75×4
=3
0.75×1.6+3/4×2.7-75%×0.3 如何简便运算?
0.75×1.6+3/4×2.7-75%×0.3
=0.75×(1.6+2.7-0.3)
=0.75×4
=3