Year 10
Core
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Lesson details
Key learning points
- In this lesson, we will find the 'Lowest Common Multiple' of two integers using a Venn diagram to compare their prime factors.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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4 Questions
Q1.
18 is a multiple of 6?
False
Q2.
Find the HCF and the LCM of 6 and 15.
A
B
D
Q3.
You can find the LCM of any 2 numbers by multiplying them together!
Always
Never
Q4.
A green light flashes every 15 minutes and a red light flashes every 50 minutes. If they start to flash at the same time, after how long will they both flash together?
1 hr 50 mins
100 mins
50 mins
4 Questions
Q1.
B
C
D
Q2.
The Venn diagram shows the product of primes for numbers A and B. What is the value of B?
A
B
C
Q3.
The Venn diagram shows the product of primes for numbers A and B. What is the LCM of these two numbers?
B
C
D
Q4.
Find the LCM of 38 and 42.
1596
352
523