maths is simple if you follow 3 rules.
1) Practice, Practice, Practice
2) Do not panic. read each qn carefully and understand exactly what
the qn wants from you before you start. (sometimes it helps to
start by listing down all the information the qn gives u. eg. 3
sisters. sum of money split into 3 shares. eldest = 1/3, second =
2/5, third = 3/5 = $120)
3) Practice, Practice, Practice (buy lots of 10
yrs series during my O'levels I did like 2-3 sets of 10 years
series, after that you'll realise how similar all the questions
are, it's just a change of name here, change of number there... but
basic concept, and solution are all similar)
now is the time you should be practicing. you already know you are
weak in maths. so stop wasting time online. sit down with your ten
yr series. and a clock.
start the clock and start the ten yrs series. see how long it takes
you to finish one paper and checking it. then slowly try to improve
on your time. but most impt thing is that you need PRACTICE and you
are running out of time to practice. so grab whatever chance you
have, be it on the bus, while you eat, etc. PRACTICE all the
way.