Are You Good Or Bad At Maths?

1: 1.<Easy> 7+3=

2: 2. 10/2=

3: 3. 2-1=

4: 4. <Medium> 95+25=

5: 5. 6.82+2.12=

6: 6. 25x6=

7: 7. <Hard> 182/5=

8: 8. 864-419+328=

9: 9. 25x13-621+328=

10: 10. <IMPOSSIBLE> 826+812-139/522x38=