1 EASY $$10000-886=$$

 2 EASY $$10000-492=$$

 3 EASY $$10000-1421=$$

 4 MEDIUM $$10000-2777=$$

 5 MEDIUM $$10000-6915=$$

 6 MEDIUM $$10000-5386=$$

 7 HARD $$10000-9383=$$

 8 HARD $$10000-7793=$$

 9 HARD $$10000-8335=$$

 10 HARD $$10000-6649=$$