1920/(110-70)x8=1920/40x8=1920/5=384如有帮助请采纳,如对本题有疑问可追问,Good luck!
1920/(110-70)*8=1920/40*8=(2000/40-80/40)*8=(50-2)*8=50*8-2*8=400-16=384
1920除以(110减70)乘以8=1920÷40×8=48×8=384