题目内容
判断对错.
=0.06
( )
判断对错
+=(a≠0)
3.3÷[0.8×(12.5+1.25)]
=3.3÷[0.8×12.5+0.8×1.25]
=3.3÷[10+1]
=3.3÷11
=0.3
8x