4B/4C HCF LCF

• Wiskunde
• WO
• Studiejaar 4

Good afternoon!

Schedule: 

• Learning goals
• What did we do yesterday 
• Factors
• HCF and LCM
• Wordproblem + Homework

Learning goals 

At the end of this lessons I can:

• Find the factors of a number
• Find the Highest Common Factor of multiple numbers
• Find the Lowest Common Multiple of multiple numbers

What did we do last lesson?

4B: HCF and LCM

18 is divisible by 3

18 ÷ 3 = 6

BECAUSE

What is a factor? 

What are factors of 18? 

4B: HCF and LCM

18 is divisible by 3

18 ÷ 3 = 6

BECAUSE

What is a factor? 

The factors of a natural number are natural numbers which divide exactly into it.

What are factors of 18? 

4B: HCF and LCM

HCF = Highest Common Factor 

LCM = Lowest Common Multiple

÷

x

4B: HCF and LCM

HCF = Highest Common Factor 

LCM = Lowest Common Multiple

÷

x

Red and Green have 1 color in common : 

Yellow

4B: HCF and LCF

Factors of 12

Factors of 32

4B: HCF and LCF

Factors of 12

Factors of 32

What is the Highest Common Factor? 

4B: HCF and LCM

	Multiples of 6	Multiples of 8
1
2
3
4
5
6
7
8

What is the Lowest Common Multiple? 

4B: HCF and LCM

Bells!!!

https://www.transum.org/Software/SW/Starter_of_the_day/starter_December20.ASP

Homework

4B.1             1, 9

4B.2            1bfj, 2

4C.1              2ac, 4                     MyiMaths

4C.2             1ijkl, 2

                                        

Finished your homework?