Mkt_NJM_BP_UPC

Example 7 The selling price of a pen is $6.3 and the selling price of a pencil is $3.7. What is the total selling price of half a dozen pens and 1 1 3 dozen pencils? Total selling price 1 1 $ 6.3 12 3.7 12 1 2 3 4 $ 6.3 6 3.7 12 3 $(6.3 6 3.7 16) $(37.8 59.2) $97   =   +         =  +       =  +  = + = In a decimal, if a digit or a pattern of digits after the decimal point repeats continuously, the decimal is called a recurring decimal. For example: 0. 5 55…, 0.4 09 09 …, 0. 629 629… are recurring decimals. In a recurring decimal, the repeated part is called the recurring period. It is indicated by the recurring point(s). For example: 0.555 555... 0.5 • = 0.409 090... 0.409 • • = 0.629 629... 0.629 • • = We can use recurring decimals to represent fractions as follows: 1 8 11 0.333... 0.3, 0.7272... 0.72, 0.407 407... 0.407 3 11 27 • • • • • = = = = = = Knowing More Recurring point(s) Recurring period Recurring decimals SAMPLE © Pearson Education Asia Limited 2020 All rights reserved; no part of this publication may be reproduced, photocopied, recorded or otherwise, without the prior written permission of Pearson.