To find out how many flowers are left after using some for decoration, we can perform a simple subtraction.
Initially, the total number of flowers is 11,000. Out of these, 2,500 flowers are used for decoration.
So, the number of flowers left can be calculated using the formula:
Flowers Left = Total Flowers − Flowers Used
Flowers Left = 11 , 000 − 2 , 500
Flowers Left = 8 , 500
Therefore, 8,500 flowers are left after decoration.