簡算:3/4×3/4+1/4×0.75%-75%

簡算:3/4×3/4+1/4×0.75%-75%

3/4×3/4+1/4×0.75%-75%
=3/4x3/4+1/4x3/4-3/4
=(3/4+1/4-1)x3/4
=0x3/4
=0
如果本題有什麼不明白可以追問,