Primary 4 Mathematics · Chapter 2 · Practice sheet

Lesson 2.5: Common Multiples

Name:Date:Marks: / 15

Section A · Multiple choice 4 marks

1. Which of these is a common multiple of 4 and 6?1 mark

(A) 12(B) 8(C) 18(D) 16

2. What is the first common multiple of 6 and 8?1 mark

(A) 48(B) 24(C) 14(D) 12

3. Some multiples of 4 and of 10 are listed. What is the first common multiple of 4 and 10?1 mark

(A) 40(B) 8(C) 20(D) 14

4. Which of these is NOT a common multiple of 4 and 6?1 mark

(A) 12(B) 24(C) 36(D) 30

Section B · Write your answer 11 marks

5. Find the first common multiple of 5 and 7.1 mark

6. Find the first common multiple of 9 and 12.1 mark

7. Find the first common multiple of 10 and 15.1 mark

8. Find the first common multiple of 6 and 12.1 mark

9. List all the common multiples of 4 and 6 that are less than 50.1 mark

10. A red bus leaves a bus stop every 6 minutes. A blue bus leaves the same stop every 8 minutes. Both buses leave together at 9:00 a.m. At what time will they next leave together?2 marks

11. Pencils are sold in packs of 6 and erasers in packs of 4. Ravi wants to buy the same number of pencils and erasers. What is the least number of each he can buy? How many packs of each does he buy?2 marks

12. Ali visits the library every 3 days. Ben visits the library every 4 days. They both visit on a Monday. On which day of the week will they next visit on the same day?2 marks

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