tag:blogger.com,1999:blog-6479061363935732747.post739383558422036869..comments2016-02-29T11:27:35.947+08:00Comments on 2011 S1-01 Maths Blog: :(Loh Kwai Yinnoreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6479061363935732747.post-67814656846102064352011-10-22T11:28:49.524+08:002011-10-22T11:28:49.524+08:00(i) You have formed the equation correctly; howeve...(i) You have formed the equation correctly; however, you have not explained how you derive at this equation. As of the solving, how did you find get 3-(-7)=x? The balancing concept behind the solving the solving of equation was not explained.<br /><br />(ii) The substitution is correctly done. You could have further elaborated that you are substituting the value obtained in (i) to find the length and breadth. So, why area = 23 cm x 10 cm? (could have pointed out the formula of area of rectangle).<br /><br />(iii) How did you get 1 m^2 = 1000 cm^2? What's the thinking behind the conversion after you mentioned that 1 m = 100 cm?<br />The conversion is correctly done.<br /><br />cm^2 should be read as "square centimetre". This applies to m^2, too.LOH Kwai Yinhttp://www.blogger.com/profile/06503397685892227762noreply@blogger.com