Practice Cubes And Cube Roots (6) - Cubes and Cube Roots

Practise this section

8 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the cube of 4?
Show hintHide hint
Use the formula S³, where S = 4.
Question 2.
Is 8 a perfect cube?
Show hintHide hint
Determine if there's an integer that can be cubed to get 8.
3Question 3.
What is the cube of 5?
- 25
- 125
- 150
Show hintHide hint
Multiply 5 by itself three times.
4Question 4.
Is 1729 a Hardy-Ramanujan number?
- True
- False
Show hintHide hint
Think about the definition of Hardy-Ramanujan numbers.
Question 5.
Find the smallest number to multiply with 100 to make a perfect cube.
Show hintHide hint
Analyze the prime factors carefully.
Question 6.
Analyze if 375 is a perfect cube, and if not, find the smallest number to divide it by.
Show hintHide hint
Consider each prime factor and its frequency.

4 more questions in this section. Enroll free to practise them all.