计算: 454+999×999+545=_. 8.08×11.23+11.23×10.92+11.23=_. 125×198÷(18÷8)=_.
问题描述:
计算:
454+999×999+545=______.
8.08×11.23+11.23×10.92+11.23=______.
125×198÷(18÷8)=______.
答
(1)454+999×999+545,
=454+545+999×999,
=999+999×999,
=999×(1+999),
=999×1000,
=999000;
(2)8.08×11.23+11.23×10.92+11.23,
=11.23×(8.08+10.92+1),
=11.23×20,
=224.6;
(3)125×198÷(18÷8),
=125×198÷18×8,
=125×8×(198÷18),
=1000×11,
=11000.