6.8-6.8×0.55的简便计算过程如下:6.8-6.8×0.55
=6.8×(1-0.55)
=6.8×0.45
=3.06
6.8-6.8x0.55
=6.8x(1-0.55)
=6.8x0.45
=(7-0.2)x0.45
=3.15-0.09
=3.06
6.8-6.8×0.55=6.8×(1-0.55)=6.8×0.45=3.06
解:原式=6.8-6.8×0.55
=6.8×1-6.8×0.55
=6.8×(1-0.55)
=6.8×0.45
=3.06
答:6、8-6、8人一0、55
=6、8x(1-0、55)
二6、8ⅹ0、45
=3、06