Answer:
1. 300
2. 46
3. 7340
4. 650
5. 0.56
6. ? (Did you mean 500 -10 or 500 + 10?)
7. 650
8. 3560
9. ? (What?)
10. ? (Did you mean 15,687 - 1000 or 15,687 + 1000)
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