Mastering Divisibility Rules

Mastering Divisibility Rules
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Slide 1: Slide

This lesson contains 13 slides, with interactive quizzes and text slides.

Items in this lesson

Mastering Divisibility Rules

Slide 1 - Slide

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Divisibility Rule for 2
A number is divisible by 2 if it ends with an even digit (0, 2, 4, 6, 8).

Slide 2 - Slide

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Divisibility Rule for 3
A number is divisible by 3 if the sum of its digits is divisible by 3.

Slide 3 - Slide

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Divisibility Rule for 4
A number is divisible by 4 if the number formed by its last two digits is divisible by 4.

Slide 4 - Slide

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Divisibility Rule for 5
A number is divisible by 5 if it ends with 0 or 5.

Slide 5 - Slide

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Divisibility Rule for 6
A number is divisible by 6 if it is divisible by both 2 and 3.

Slide 6 - Slide

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Divisibility Rule for 7
A number is divisible by 7 if you double the last digit and subtract it from the rest of the number. If the result is divisible by 7, the original number is also divisible by 7.

Slide 7 - Slide

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Divisibility Rule for 8
A number is divisible by 8 if the number formed by its last three digits is divisible by 8.

Slide 8 - Slide

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Divisibility Rule for 9
A number is divisible by 9 if the sum of its digits is divisible by 9.

Slide 9 - Slide

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Worked Examples
Divide a 3-digit number by 2, 3, 4, 5, 6, 7, 8, and 9 to demonstrate the application of the divisibility rules.

Slide 10 - Slide

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Write down 3 things you learned in this lesson.

Slide 11 - Open question

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.
Write down 2 things you want to know more about.

Slide 12 - Open question

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.
Ask 1 question about something you haven't quite understood yet.

Slide 13 - Open question

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.