Understanding decimals starts with a good understanding of place value. Therefore, I recommend that you start by carefully studying decimals place value before studying other lessons once you are done reading this page.
What is a decimal? When examining the word decimal, you can recognize the prefix deci. And deci is equal to 1/10 or 0.1
A decimal is referring to any proper or improper fraction whose denominator is 10, 100, 1000, and so forth...
For example, the following are all examples of decimals.
5/10 = 0.5
2/100 = 0.02
16/1000 = 0.016
1/100 = 0.01
195/10000 = 0.0195
45/10 = 4.5
234/100 = 2.34
Notice that the first 5 are proper fractions and the last two are improper fractions.
We can then say that a decimal is a combination of a whole number and a fraction of a whole number.
Oct 15, 18 11:05 AM
why the rule of 72 works- math explanation of where the 72 came from.
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Oct 15, 18 11:05 AM
why the rule of 72 works- math explanation of where the 72 came from.
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