如题所述
ç®ä¾¿è®¡ç®æ¹æ³
52*102+51*101-49*99-48*98
=104*51+51*101-49/99-96*49
=ï¼104+101ï¼*51-49*ï¼99+96ï¼
=205*51-49*195
=205*51-51*195+2*195
=ï¼205-195ï¼*51+390
=10*51+390
=510+390
=900
52*102+51*101-49*99-48*98
=104*51+51*101-49/99-96*49
=ï¼104+101ï¼*51-49*ï¼99+96ï¼
=205*51-49*195
=205*51-51*195+2*195
=ï¼205-195ï¼*51+390
=10*51+390
=510+390
=900
温馨提示:答案为网友推荐,仅供参考