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Divisibility Rules! Factor This! Can U Multiply The 4 step plan Exponents 100 2 100 7 100 12 100 17 100 22 200 3 200 8 200 13 200 18 200 23 300 4 300 9 300 14 300 19 300 24 400 5 400 10 400 15 400 20 400 25 500 6 500 11 500 16 500 21 500 26 FINAL JEOPARDY

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The rule for being divisible by 2 The number ends in a 0, 2, 4, 6, or 8 100

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3,065 is divisible by 5. How do I know this? It ends in a 5 or 0 200

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Is 128 even or odd? Even 300

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The rule for divisibility by 3 Add the digits and see if the number is divisible by 3 400

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Is 1280 divisible by 10? Why or why not? Yes, because it ends in a 0 500

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Is 45 a prime or composite number? Composite (9 5 = 45) 100

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Find the prime factorization of 25 5 5 or 5 2 200

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What is the prime factorization of 12? 223223 300

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Is 9 prime or composite? Composite 400

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Name 5 prime numbers 2, 3, 5, 7, 11, 13, 17, 19, 23,29,31 500

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What is another word that tells you to multiply times, of, factor, product 100

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What is 3 x 11 33 DAILY DOUBLE 200

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If 5 x 7 = 35, what does 35 5 = 7 300

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Which answer is larger… 10 + 5 or 7 x 2 10 + 5 400

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What is 3 x 2 x 4 24 500

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What are the steps in the four step plan? Find, Solve, Explain, Answer 100

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How far does Jupiter travel in one day? 200 What is the find in this problem: Jupiter orbits the sun at 8 miles each second. How far does Jupiter travel in one day?

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Solve this problem. The bus left at 10:00 and arrives at your house 20 minutes later. What time did the bus get to your house? 10:20 300

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What does the step EXPLAIN want you to do? Tell why you did the math (added or subtracted…) 400

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Name three words/phrases that mean subtract take away, less, difference, less than, minus 500

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What does 7 5 mean? 7 x 7 x 7 x 7 x 7 100

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Write 4 x 4 x 4 using an exponent 4343 200

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Write “ten to the fifth power” as a product of the same factor 10 x 10 x 10 x 10 x 10 300

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What does “squared” mean? to the second power 400

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What does “cubed” mean? to the third power 500

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What two numbers are neither prime nor composite. 1 and 0

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