问题
解答题
510+530+550+570+590
=______×______
=______.
答案
510+530+550+570+590,
=550×5,
=2750;
故答案为:550,5,2750.
510+530+550+570+590
=______×______
=______.
510+530+550+570+590,
=550×5,
=2750;
故答案为:550,5,2750.