计算:(7777+8888)÷5-(888-777)×3=_.
问题描述:
计算:(7777+8888)÷5-(888-777)×3=______.
答
(1111×7+1111×8)÷5-(111×8-111×7)×3,
=1111×(7+8)÷5-111×(8-7)×3,
=1111×(15÷5)-111×1×3,
=1111×3-111×3,
=(1111-111)×3,
=1000×3,
=3000.
故答案为:3000.