如题所述
64x1.98-21x198ï¼57x198
=64x1.98+ï¼57-21ï¼x198
=0.64x198+46x198
=198xï¼46+0.64ï¼
=198x46.64
=9 234.72
æ¤é¢ç®åæ æä¹
è¥é¢ç®ä¸º64x198-21x198ï¼57x198
åç®ä¾¿æ¹æ³æ
64x198-21x198ï¼57x198
=198xï¼64-21+57ï¼
=198x100
=19800
=64x1.98+ï¼57-21ï¼x198
=0.64x198+46x198
=198xï¼46+0.64ï¼
=198x46.64
=9 234.72
æ¤é¢ç®åæ æä¹
è¥é¢ç®ä¸º64x198-21x198ï¼57x198
åç®ä¾¿æ¹æ³æ
64x198-21x198ï¼57x198
=198xï¼64-21+57ï¼
=198x100
=19800
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