5*1.71+0.5*65+0.05*179简算
问题描述:
5*1.71+0.5*65+0.05*179简算
答
5*1.71+0.5*65+0.05*179=5×(1.71+6.5+1.79)=5×(3.5+6.5)=5×10=50
5*1.71+0.5*65+0.05*179简算
5*1.71+0.5*65+0.05*179=5×(1.71+6.5+1.79)=5×(3.5+6.5)=5×10=50