You should use your calculator for such simple sums. It is far quicker and involves fewer key depressions than posting the question on WA. But since you seem unable to carry out even this simple task, the answer is 1300
6500
6000
The number 6000 is already rounded to the nearest thousand.
7000 of them.
6000
It is: 7000
7000 + 200 = 7,200
6000
7609
6000
7000
6000
6000
6500
It is: 7000
The sum is 6,455
6000