Klataza 🧮 Math
Unit 17 · Review: mixed problems
² Powers and roots
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Problems
- 2.4 + 1.6 =
- 10% of 60 =
- 5 + 1 =
- Simplify: x^3 · x^3 =
- 3.1 + 3.3 =
- 10% of 200 =
- 8 + (−6) =
- 12² =
- 4.5 − 3.9 =
- 25% of 200 =
- 3.8 − 2.8 =
- 25% of 120 =
- −8 − (−4) =
- Simplify: x^5 · x^4 =
- 4.5 + 3.5 =
- 50% of 40 =
- 9 + (−4) =
- Simplify: x^5 · x^3 =
- 3.2 − 2 =
- 20% of 80 =
Tip: 10% is one tenth, 50% is half, 25% is a quarter.
Answer key
1. 4 · 2. 6 · 3. 6 · 4. x^6 · 5. 6.4 · 6. 20 · 7. 2 · 8. 144 · 9. 0.6 · 10. 50 · 11. 1 · 12. 30 · 13. -4 · 14. x^9 · 15. 8 · 16. 20 · 17. 5 · 18. x^8 · 19. 1.2 · 20. 16