问题
解答题
脱式计算
634-257-325
928-245+128
852+48-695.
答案
634-257-325
=377-325
=52;
928-245+128
=683+128
=811;
852+48-695
=900-695
=205.
脱式计算
634-257-325
928-245+128
852+48-695.
634-257-325
=377-325
=52;
928-245+128
=683+128
=811;
852+48-695
=900-695
=205.