问题
解答题
计算:9992+999+10012-1001
答案
9992+999+10012-1001=999(999+1)+1001(1001-1)
=999×1000+1001×1000
=(999+1001)×1000
=2000×1000=2000000.
计算:9992+999+10012-1001
9992+999+10012-1001=999(999+1)+1001(1001-1)
=999×1000+1001×1000
=(999+1001)×1000
=2000×1000=2000000.