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1-->Set 41 (odds) - Due Friday (1/20)




                                        1
Lesson 41 Warm-Up:
1) Which property is illustrated:
    12 + 37 = 37 + 12

2)   Use digits to write sixty-seven hundred-thousandths

3) About 70% of the earth's surface is water, about what fraction
of the earth's surface is land?

4)   Solve:    x           10
              2.4         16

5)   Simplify:      7.4         8




                                                                    2
Lesson 41:

*Distributive Property [of Multiplication over Addition]

    a(b + c) = ab + ac

    3(2 + 5) = (3)(2) + (3)(5)



    3(x + 6) =




                                                           3
Examples (Lesson 41):

A) Find A in A = bh, when b = 15 in. and h = 8 in.



B) Evaluate ab when a = 6 ft and b = 8 ft
             2



C) Show 2 ways to simplify this expression: 6(20 - 5)




                                                        4
D) Simplify: 2(n + 5)




E) Write 2 formulas for finding the perimeter of a rectangle.




                                                                5

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7th Math - L41--Jan17

  • 1. Assignment--> 1-->Set 41 (odds) - Due Friday (1/20) 1
  • 2. Lesson 41 Warm-Up: 1) Which property is illustrated: 12 + 37 = 37 + 12 2) Use digits to write sixty-seven hundred-thousandths 3) About 70% of the earth's surface is water, about what fraction of the earth's surface is land? 4) Solve: x 10 2.4 16 5) Simplify: 7.4 8 2
  • 3. Lesson 41: *Distributive Property [of Multiplication over Addition] a(b + c) = ab + ac 3(2 + 5) = (3)(2) + (3)(5) 3(x + 6) = 3
  • 4. Examples (Lesson 41): A) Find A in A = bh, when b = 15 in. and h = 8 in. B) Evaluate ab when a = 6 ft and b = 8 ft 2 C) Show 2 ways to simplify this expression: 6(20 - 5) 4
  • 5. D) Simplify: 2(n + 5) E) Write 2 formulas for finding the perimeter of a rectangle. 5