Question

15.8-5.8x0.15简便计算？

请问这题用简便计算

Answer 1

答：15.8-5.8*0.15
=15.8-（6-0.2）*0.15
=15.8-6*0.15+0.2*0.15
=15.8-0.9+0.03
=14.93
所以答案是14.93。

Answer 2

15.8-5.8x0.15=15.8-(6-0.2)x0.15=15.8-(6x0.15-0.2X0.15)=15.8-(0.9-0.03)=15.8-0.9+0.03=14.9+0.03=14.93

Answer 3

你好，等式 15.8-5.8*0.15=（10+5.8）-5.8*0.15=10+5.8-5.8*0.15=10+5.8*（1-0.15）=10+5.8*0.85=10+（5+0.8）*0.85=10+5*0.85+0.8*0.85=10+4.25+0.68=14.93

Answer 4

15.8-5.8*0.15=10+5.8-5.8*0.15=10+5.8*(1-0.15)=10+5.8*0.85=10+5.8*(0.8+0.05)=10+4.64+0.29=14.93

Answer 5

题目是15.8-5.8*0.15
15.8-5.8*0.15
解：原式=15.8-5.8*(0.2-0.05)
=15.8-5.8*0.2+5.8*0.05
=15.8-1.16+0.29
=14.93