Riddle puzzle: 8th grade number sense

What did the triangle say to the circle?

1. 1.Write 3 700 000 in scientific notation (like 4.5 × 10^6).
2. 2.Find ∛216.
3. 3.√108 lies between which two whole numbers?
4. 4.Write 0.111… (1 repeating) as a fraction in simplest form.
5. 5.Find √(1/4).
6. 6.Is −√81 rational or irrational?
7. 7.Find √1.96.
8. 8.Work out (7 × 10⁵) × (6 × 10³).
9. 9.Write 4.6 × 10⁻⁵ as a decimal.
10. 10.Find ∛1.
11. 11.Write 1.9 × 10¹ as an ordinary number.
12. 12.Is √31 rational or irrational?
13. 13.Work out (2 × 10⁷) ÷ (1 × 10¹).
14. 14.To the nearest whole number, what is √137?

Decoder · for question 1

The answer to the riddle