0.64*0.25+0.75= 的简便方法

2025-04-14 04:02:19
推荐回答(3个)
回答(1):

0.64*0.25+0.75
=0.16x4x0.25+0.75
=0.16+0.75
=0.91

回答(2):

即0.8^2X0.5^2+0.75
=(0.8X0.5)^2+0.75
=0.4^2+0.75
=0.16+0.75
=0.91

回答(3):

等于0.16*4*0.25+0.75=0.91