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Quiz

Year 1: Real numbers

10 questions with solutions for year 1: prime factors, HCF and LCM, operations with integers, fractions and decimals, roots – review problems.

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

1. LCM(108, 39) = ?

2. HCF(270, 96) = ?

3. 365 + 48 + 135 + 252 + 200 = ?

4. 15 ÷ 3 + 25 × 11 × 4 − 50 × 5 = ?

5. Marko swims every 3rd day, studies Chinese every 4th day and cycles every 14th day. Today he does all three. In how many days will they fall on the same day again?

6. Ice, Pece and Goce have steps of 60 cm, 65 cm and 70 cm. They start together. After how many cm will each have made a whole number of steps?

7. How many 3-digit multiples of 7 between 100 and 200 are divisible by 5?

8. 3.72 + 0.02 − 2.35 = ?

9. (6.25 ÷ 0.5) · 0.01 = ?

10. √288 − √8 + √18 = ?