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# Fun and Games - PowerPoint PPT Presentation

Fun and Games. Number Theory GONE WILD!. Factors “Fall” into Families. Multiples Multiply like Rabbits!. What am I Learning Today?. Divisibility Rules. How will I show that I learned it?. Create a graphic organizer that contains the divisibility rule, an example and an explanation.

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### Fun and Games

Number Theory GONE WILD!

Factors “Fall” into Families

Multiples Multiply like Rabbits!

Divisibility Rules

How will I show that I learned it?

Create a graphic organizer that contains the divisibility rule, an example and an explanation.

Use divisibility rules to determine the characteristics of numbers.

128 313 16 25

YES NO 10 24 65 33 225 79 610 246

Turn to a partner and try to figure out what the “yes” numbers have in common

Then, try to identify “What’s the rule?”

Tell whether 462 is divisible by 2, 3, 4, and 5.

The last digit, 2, is even.

Divisible

The sum of the digits is 4 + 6 + 2 = 12. 12 is divisible by 3.

Divisible

Not divisible

The last two digits form the number 62. 62 is not divisible by 4.

Not divisible

The last digit is 2.

So 462 is divisible by 2 and 3.

Tell whether 540 is divisible by 6, 9, and 10.

The number is divisible by both 2 and 3.

Divisible

The sum of the digits is 5 + 4 + 0 = 9. 9 is divisible by 9.

Divisible

The last digit is 0.

Divisible

So 540 is divisible by 6, 9, and 10.

Turn to a partner and discuss the following: