Estimating and Calculating
Introduction to Rounding
"Balance of Payments Deficit $9,000,000"
Newspapers, adverts and television often give information in numbers. However, it is unlikely that the Balance of Payments Deficit is exactly $9,000,000 or the number of unemployed is exactly 350,000.
More likely, the Balance of Payments Deficit is more like a number such as $6,895,481 or $7,132,206. From the readers' or viewers' point of view $7,000,000 is a good approximation. Large numbers are often approximated this way.
This process is called rounding.
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