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Distributive Property

Distributive Property. Created by: Mrs. J Couch. Distributive Property. The Distributive Property is an identity used to simplify an equation with parentheses. In general , a(b + c )= a×b + a×c For example , 5(4+7).

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Distributive Property

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  1. Distributive Property Created by: Mrs. J Couch

  2. Distributive Property • The Distributive Property is an identity used to simplify an equation with parentheses. • In general, a(b + c)= a×b + a×c • For example, 5(4+7). • Youmultiply 5 by 4 (you get 20) andthen 5 by 7 (you get 35). Then, youadd the twoproductstogetherand get youranswer, 55. • 5(4+7) = 5×4 + 5×7 • 20 + 35 = 55

  3. Example

  4. Practice • Distribute: 8(9 + 5) 4(2 + 5)

  5. Practice • 42 + 12 = 6(7+2) • Is it true or false? Explain your thinking.

  6. Practice • Which of the following expressions is equivalent to 72 + 45? • A. 3(24 + 45) • B. 8(9 + 5) • C. 9(8 + 5) • D. 6(12 + 7)

  7. Practice • Write a number sentence using the distributive property for each of the following • 64 + 32 • 72 + 12 • 45 + 18

  8. Distributive Property Diagrams • Ex. • Ex.

  9. Study Jams • http://studyjams.scholastic.com/studyjams/jams/math/multiplication-division/distrib-property.htm

  10. Exit Slip-Answer each of the following on the notecard and turn it in when you leave Use the distributive property to rewrite the expression. • 4(3 + 2) • 7(5 + 8) Write a number sentence using the distributive property: • 9 + 12 • Find the prime factorization of 68.

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