4A: Divisibility

• Wiskunde
• MBO
• Studiejaar 2

Good afternoon!

Schedule: 

• Learning goals
• Homework questions
• Divisibility 
• Even and odd numbers 
• Divisibility test 
• Homework 

Learning goals 

At the end of this lessons I can:

• Find even and odd numbers 
• Find if a number is divisible by another
• Use the divisibility test to find the divisors of a number

4A: Divisibility

A number is divisible by another if, when we divide, the quotient is a whole number

                                  

18 is divisible by 3

18 ÷ 3 = 6

BECAUSE

whole number

When is a number even?

When is a number odd?

4A: Divisibility

A number is even when it is divisible by 2 

A number is odd when it is not divisible by 2

26 is divisible by 2 

26 ÷ 2 = 13

26  is even

73 is not divisible by 2 

73 ÷ 2 = 36.5

73 is odd

Even or odd?

4B : Divisibility test 

What is 1999 divisible by? 

(only divisors 1-11)

4B : Divisibility test 

Homework

4A.1             3, 4ace, 5ab, 6cd

4A.2            4, 5, 6, 9

                              MyiMaths

Finished your homework?