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Dividing by 7

Dividing by 7. Divisibility Rules. Dividing by 7. Remember that division is dividing a total into parts. When you divide by 7, you are dividing the total into 7 groups. Practice. 14 divided by 7 = ????. 14 / 7 = 2. Your Turn. 28 / 7 = ??? 42 / 7 = ??? 14 / 7 = ??? 49 / 7 = ???

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Dividing by 7

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  1. Dividing by 7 Divisibility Rules

  2. Dividing by 7 • Remember that division is dividing a total into parts. • When you divide by 7, you are dividing the total into 7 groups.

  3. Practice 14 divided by 7 = ???? 14 / 7 = 2

  4. Your Turn • 28 / 7 = ??? • 42 / 7 = ??? • 14 / 7 = ??? • 49 / 7 = ??? • 35 / 7 = ???

  5. Divisibility Rules? • Divisibility rules are “tricks” to make dividing fast. • Using divisibility rules helps you know which numbers can be divided evenly by a certain number.

  6. Divisibility Rule for 7 • Take the last digit in a number and double it. Subtract that from the rest of the digits. If your answer is divisible by 7, the whole number can be divided by 7. • EX: 357 7 doubled is 14 35 – 14 = 21 21 / 7 = 3 SO 357 can be divided by 7

  7. Which of these are divisible by 7? 413 917 791 882 312 2933 490

  8. Basic Facts • Solve: • 35 / 7 = ??? • 63 / 7 = ??? • 0 / 7 = ??? • 14 / 7 = ??? • 28 / 7 = ??? • 56 / 7 = ??? • 66 / 7 = ??? • 49 / 7 = ???

  9. Let’s Play! • Play Fleebur and Spinky game to practice dividing by 7s. • http://www.fun4thebrain.com/Division/divfleebur.html

  10. Independent Work • Look in your orange Homework Practice/ Math Connects book and complete page 56 • # 3, 4, 7, 8, 11, 12, 14, 17

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