如题所述
解ï¼éç¨æåæ³ååé
å¾ï¼
762x999
=762xï¼1000-1ï¼
=762x1000-762
=762000-762
=761238
762x999
=762xï¼1000-1ï¼
=762x1000-762
=762000-762
=761238
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第1个回答 2017-07-17
762X999
=762X1000-762X1
=762000-762
=761238
=762X1000-762X1
=762000-762
=761238
第2个回答 2017-07-17
762×(1000-1)
=762000-762
=761238
=762000-762
=761238