0.075×350+0.65×75用简便算法0.888×1.6-0.222×2.4用简便算法0.075×350+0.65×75用简_数学解答

0.075×350+0.65×75用简便算法0.888×1.6-0.222×2.4用简便算法
0.075×350+0.65×75用简便算法
0.888×1.6-0.222×2.4用简便算法

人气：308 ℃　时间：2020-02-06 03:24:31

解答

0.075×350+0.65×75
=75×0.35+0.65×75
=75×(0.35+0.65)
=75×1
=75
0.888×1.6-0.222×2.4
=0.222×(4×1.6-2.4)
=0.222×(6.4-2.4)
=0.222×4
=0.888
或者
0.888×1.6-0.222×2.4
=
0.888×1.6-0.222×2.4
=0.888×1.6-0.222×4×0.6
=0.888×(1.6-0.6)
=0.888×1
=0.888