Okay, so PSLE and O-level is just around the corner. You or your kids need emergency help on certain topics, but there is no one to turn to.
This is where this thread comes in: You ask a Maths question, I explain the concepts. Note that I may or may not give you aa solution.
So start asking, and take this as a form of online tutoring.
P.S. Dear Eagle, darkness, and my boss Dr-to-be Wee (ahem, Sir I mean), please do not lock my thread, as I am not advertising. I have been around long enough, so all of you should know that I am not trying to advertise anything.