1,2,3,4,5,6…..... Fun and Games What am I Learning Today? Prime and Composite Numbers.

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Presentation transcript:

1,2,3,4,5,6…....

Fun and Games

What am I Learning Today? Prime and Composite Numbers

Vocabulary Composite number: A number that is divisible by more than two numbers. Prime number: A number greater than one that is only divisible by one and itself.

Step 1: Circle 2 in blue because it is prime. Now cross out all the multiples of 2 with that same color. Step 2: Circle 3 in green because it is prime. Now cross out every third number with that same color. Step 3: Circle 5 in red because it is prime. Now cross out all the numbers that end in 0 or 5 in that same color. Step 4: Circle 7 in yellow because it is prime. Now cross out every seventh number with that same color. Step 5: Circle the remaining numbers, EXCEPT for one, in purple Square because they are all prime