计算: 200.8×73-6.3×2008 9999×2222+3333×3334 (1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×…(1+1/99)×(1-1/99)
问题描述:
计算:
200.8×73-6.3×2008
9999×2222+3333×3334
(1+
)×(1-1 2
)×(1+1 2
)×(1-1 3
)×…(1+1 3
)×(1-1 99
) 1 99
答
①200.8×73-6.3×2008 =2008×7.3-6.3×2008=2008×(7.3-6.3)=2008×1=2008; ②9999×2222+3333×3334=3333×6666+3333×3334=3333×(6666+3334)=3333×10000=...