问题
解答题
计算2009×98+4018=______.
答案
2009×98+4018
=2009×(100-2)+4018,
=2009×100+4018-2009×2
=200900+4018-4018,
=200900.
故答案为:200900.
计算2009×98+4018=______.
2009×98+4018
=2009×(100-2)+4018,
=2009×100+4018-2009×2
=200900+4018-4018,
=200900.
故答案为:200900.