Arithmetic Problem #6

Try this question! Hint: Simplify it first! 🙂 Arithmetic Problem #7 Arithmetic Problem #6 Arithmetic Problem #5 Arithmetic Problem #4 Arithmetic Problem #3 Arithmetic Problem #2 Arithmetic Problem #1

Arithmetic Problem #5

Saw this question on the internet and thought its rather interesting. A-levels students should be all buried other their workload, amidst the mock papers and ten year series. Hopefully this might [...]

Trick to squaring numbers

Many students go wow when I evaluate workings, without a GC. I’m not showing off, but it is because I don’t really carry a calculator with me. haha. So some students do ask me how I [...]

Arithmetic Question #4

Here is an interesting question to test students if they know who to evaluate their square roots. Ans: 8 First of all, students should know that this is positive square root so the resultant [...]

The Modulus Sign #2

So now let us look at a simple relationship that many students memorise instead of understand. Below, we see a absolute function graph. Now we all know that gives us . So how did that happen? [...]

The Modulus Sign #4

I received this from a student of mine who was really confused with the transition from line 2 to line 3. Students should give it a thought before reading my explanation below. Firstly, my [...]

The Modulus Sign #1

A few weeks back, I conducted a weekend of lessons on the modulus sign (or absolute value sign) with all my JC2. Its to prepare them for the upcoming prelims and A-levels. Many students till [...]

Confusion on when to put ± sign

The sign definitely can cause a lot of confusion for students. For starters, and the list goes on. So my focus today is to explain when to put while dealing with . First, lets recognise a few [...]

How many chess games are possible?

The Shannon number, named after Claude Shannon, is an estimated lower bound on the game-tree complexity of chess of 10120, based on about 103 initial moves for White and Black and a typical game [...]

Mathemusic!

So we shared a bit on mathmagic by Dr. Benjamin a week ago. He showed off some amazing arithmetic skills. So today, we shall share a bit of mathemusic. How wonderful can get! This is something [...]

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