Practice Key Sets (1.2) - Chapter 1 : Number System

Practise this section

9 questions

Flashcard drill
3 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
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
List three integers.
Show hintHide hint
Think of numbers without fractions.
Question 2.
What is a rational number?
Show hintHide hint
Remember the format p/q.
3Question 3.
Which of the following is an integer?
- 1.5
- 0
- -2
- 3.7
Show hintHide hint
Look for whole numbers among the options.
4Question 4.
True or False: All integers are also rational numbers.
- True
- False
Show hintHide hint
Consider how integers relate to fractions.
Question 5.
Explain why there are infinitely many rational numbers between any two given rational numbers.
Show hintHide hint
Try using the average or creating fractions in between!
Question 6.
Demonstrate using a proof that the sum of two irrational numbers is not necessarily irrational (Example: √2 + (-√2)).
Show hintHide hint
Think about combinations leading to whole numbers or zero.

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