Please Do Not Do Homework Ahead of the Date Assigned. You May Put Your Work on Separate

Math HW for 9/29-10/3/2014 Please do not do homework ahead of the date assigned. You may put your work on separate paper if needed. Monday, Sept. 29 Tuesday, Sept. 30 In 1 through 5, write the multiplication property used in each Use mental math to find each product. equation. 1. 150 X 20 = ______1. 53 X 6 = 6 X 53 ______2. 100 X 10 X 1 =______2. 0 X 374,387 = 0 ______3. 500 X 50 = ______3. 5 X (11 X 4) = (5 X 11) X 4 ______4. 4500 X 100 = ______4. 42 X 1 = 42 ______5. 456000 X 1200 X 0 = ______5. 14 X 5 = 5 X 14 ______6. A googol is a large number that is the digit one followed by 6. Dan has 4 shelves. He has exactly 10 books on each shelf. Judy one hundred zeros. If you multiply a googol by 100, how many has 10 shelves. She has exactly 4 books on each shelf. Who has zeros will that product have? more books? Explain.

7. If a X b X c = 0, and a and b are integers greater than 10, what 7. Explain It Write a definition for the Associative Property of must c equal? Explain. Multiplication in your own words.

Wednesday, Oct. 1 Thursday, Oct. 2 Estimate each product. 1.Xavier painted five portraits and wants to sell them for 36 1. 28 X 17 = dollars each. How much money will he make if he sells all 2. 99 X 99 = five? 3. 70 X 27 = 4. 69 X 23 X 21 = 2. A regular octagon is a figure that has eight sides with equal 5. Which is the closest estimate for the product of 2 X 19 X lengths. If one side of a regular octagon is 14 inches long, 5? what is the perimeter of the entire octagon? A. 1,150 B. 200 C. 125 D. 50 3. Why is 2,482 not a reasonable answer for 542 X 6?