Posted by julia on Thursday, December 16, 2010 at 7:46pm.
I don't get that number exactly. First, I don't think you should have rounded when you did. You are allowed at least 3 s.f. but you rounded to 0.53, throwing away at least 1 s.f. I obtained, using your numbers, 13.37 L, which would be rounded to 13.4 to three s.f. However, using the number in the calculator that comes from 16/30.07 (0.53209), and using the remainder of the figures you have, returns 13.418 which rounds to 13.4L.
I guess I need to figure out the s.f. or stop rounding numbers.... :( thank you...
I ALWAYS carry at least one more place than I know I'm allowed and sometimes even two more. You can ALWAYS throw those unwanted numbers away at the end when you round with s.f. in mind; you can't always ADD numbers at the end if you've thrown them away earlier.
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