如题所述
640é¤ä»¥56çç®ä¾¿æ¹æ³
640/56
=640/8/7
=80/7
640/56
=640/8/7
=80/7
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第1个回答 2016-04-12
原式
=640÷56
=(80x8)÷(8x7)
=80x8÷8÷7
=80x1÷7
=80/7
=11又3/7
供参考。
=640÷56
=(80x8)÷(8x7)
=80x8÷8÷7
=80x1÷7
=80/7
=11又3/7
供参考。