问题
解答题
317×99+317=317×(99+1).______.
答案
317×99+317,
=317×99+317×1,
=317×(99+1),
=317×100,
=31700;
故答案为:正确.
317×99+317=317×(99+1).______.
317×99+317,
=317×99+317×1,
=317×(99+1),
=317×100,
=31700;
故答案为:正确.