1) If two typists can type two pages in 4 minutes, how many typists will it take to type 10 pages in 20 minutes?
Explain how you determined the answer. Can you solve in more than one way? This problem is similar to the Mango Problem... 2) Three sailors were marooned on a deserted island that was also inhabited by a band of monkeys. The sailors worked all day to collect coconuts but were too tired that night to count them, They agreed to divide them equally the next morning. During the night, one sailor woke up and decided to take his share. He found that he could make three equal piles, with one coconut left over, which he threw to the monkeys. Then he put his own share in a pile down the beach, and left the remainder in a single pile near where they all slept. Later that night, the second sailor awoke and, likewise, decided to take his share of coconuts. He also was able to make three equal piles, with one coconut left over, which he threw to the monkeys. Somewhat later, the third sailor awoke and did exactly the same thing with the remaining coconuts. In the morning, all three sailors noticed that the pile was considerably smaller, but each thought that he knew why and said nothing. When they then divided what was left of the original pile of coconuts equally, each sailor received seven and one was left over, which they threw to the monkeys. How many coconuts were in the original pile? Enjoy your day off ~Ms. Gillen Hope everyone is safe during this Hurricane! Here are some of the fraction notes from class for you to review. 726/716 will have a test on adding, subtracting, multiplying, and dividing fractions this week. 725 will have the unit test.
We discussed two ways to Add and Subtract Mixed Numbers. You can always add or subtract the fractions first and then the whole numbers. However, sometimes when subtracting you may need to "borrow" a whole and add it to the fraction! If this gets to confusing...remember that you can always convert the mixed numbers to improper fractions first and then add and subtract as usual. (ALWAYS FIND THE COMMON DENOMINATOR FIRST) Hardest Case: Subtracting and BORROWING! :
We discussed a few ways to Add and Subtract Fractions. or feel free to use the
BUTTEFLY METHOD First: See if the fraction is one of the "friendly fractions." The chart below should be helpful to study. Sometimes...you may have to use LONG DIVISION :)
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February 2013
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