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**Multiplying and Dividing by 10,100,and 1,000(Contd)**

September 17,2013 Common Core Standard: Understand place value pattern can help you multiply and divide by powers of 10.

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Number Talk The drive from Oakland to Pinewood was a tricky one. I covered the uphill distance of 65 miles at 35 miles per hour. The return journey from Pinewood to Oakland was downhill, and I managed to drive at 63 miles per hour. What was my average speed for the entire journey?
(NCES)

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**Problem 60.014 X ____ = 600.14 34.12 X 100 =_____________**

8,231 ÷10,000= ___________

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Problem Solving A coral poly is a tubular saclike animal with a central mouth surrounded by a ring of tentacles. The size of polyp varies. If each polyp is 0.12 inch in diameter, how many polyps would fit in a row 12 inches long? If each polyp is 0.12 inch in diameter, how many polyps would fit in an area of coral reef that is 1 foot long by 1 foot wide?

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Problem Solving Suppose that one bacterial cell divides every 30 minutes to make 2 cells. Which expression will find how many cells there will be after 3 hours? A. 1 X 2 X 2 X 2 X 2 X 2 B. 2 X 30 C 2 X 2 X 30 D. 1 X2 X 2 X 2 X2 X 2 X 2

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Count to 20. Count reliably at least 10 objects. Use ‘more’ and ‘less’ to compare two numbers. Count reliably at least 10 objects. Estimate number of objects.

Count to 20. Count reliably at least 10 objects. Use ‘more’ and ‘less’ to compare two numbers. Count reliably at least 10 objects. Estimate number of objects.

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