7778乘以负的9999加负的3333乘以6666_数学解答

7778乘以负的9999加负的3333乘以6666

人气：496 ℃　时间：2020-04-09 14:35:31

解答

7778×(-9999)+(-3333)×6666
= (-9999)×7778+(-3333×3)×(6666÷3)
= (-9999)×7778+(-9999)×2222
= (-9999)×(7778+2222)
= (-9999)×10000
= -99990000