Sunday, September 19, 2010

Placing the decimal orders

In this lesson we're going to learn placing the each decimal ascending order or descending order. Placing the decimals into descending order or ascending order shows us which decimal is bigger or smaller.

  Example 1 is "Order the following numbers in descending order."
                       77.4  77.04   77    77.44
 Now, 77.4. 77.4 equals to 77 + 4/10,
77.04 equals to 77 +  4/100,
there's no decimal on 77,
and lastly 77.44 equals to 77 + 44/100.

Therefore the answer is 77.44, 77.4, 77.04, 77.

 Second example is "Five hamsters ran in the 1m hamster marathon and recorded their time of finish in seconds. Order the following times in ascending order.
              31.07, 34.67, 31.37, 21.79, 56.45

 Now we do the same thing as we did it in the example 1.
31.07 equals to 31 + 7/100,
34.67 = 34 + 67/100,
31.37 = 31 + 37/100,
21.79 = 21 + 79/100,
56.45 = 56 + 45/100.

  Therefore the answer is: 21.79, 31.07, 31.37, 34.67, 56.45.

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