简算﹙999²＋999﹚×0.

来源：学生作业帮助网编辑：作业帮时间：2024/05/04 05:07:33

简算﹙999²＋999﹚×0.
简算﹙999²＋999﹚×0.

简算﹙999²＋999﹚×0.
﹙999²＋999﹚×0.01
=999×（999+1）×0.01
=999×1000×0.01
=999×10
=9990

（9992+999）×0.01
=（999×999+999）×0.01
=999×（999+1）×0.01
=999×1000×0.01
=9990