Riddle puzzle: 9th grade number sense

What do you call a number that never stays still?

1. 1.Write 0.666666… as a fraction in simplest form.
2. 2.Simplify √1260 ÷ √5.
3. 3.Expand and simplify: (9 + √10)
4. 4.Simplify √20 × √2.
5. 5.Write 0.55555… as a fraction in simplest form.
6. 6.Simplify √216 ÷ √2.
7. 7.Write 0.676767… as a fraction in simplest form.
8. 8.Simplify √54. It can be written as k√6. What is k?
9. 9.Simplify √54 ÷ √2.
10. 10.Simplify √3 + √27. Write it as k√3; what is k?
11. 11.Simplify √40 ÷ √5.
12. 12.Simplify √343. It can be written as k√7. What is k?
13. 13.Simplify: √75 − √108.
14. 14.Simplify: √150 − √24.

Decoder · for question 1

The answer to the riddle