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Quiz

Year 1: Real numbers

10 questions with solutions for year 1: natural numbers and integers, divisibility, rational numbers, expanding and simplifying, reciprocals, decimals, real numbers, intervals.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. HCF(36, 48) = ?

2. LCM(6, 8) = ?

3. −3 · (−4) + (−10) = ?

4. 2/3 + 1/4 = ?

5. (3/4) : (9/8) = ?

6. The reciprocal of −2/5 is:

7. 0.25 × 0.4 = ?

8. Which number is irrational?

9. How many integers are in the interval [−2, 3)?

10. [1, 5] ∩ (3, 7) = ?