Matrix Math

Only 10% of people can answer this in 5 seconds. Can you?

Drop your answer in the comments — and tell us if you solved it in 5 seconds.

Primary 6 ACS Prelim Math Paper 2 2025 Review

Primary 6 ACS Prelim Math Paper 1 2025 Review

Most students use only 10% of their calculator’s functions.
The triple comma button is one of the most underrated shortcuts on the calculator — and it can instantly convert decimal hours into hours, minutes and seconds.
3.67 hours?
One few clicks later:
3 hours 40 minutes 12 seconds.
Simple hack. Faster working. Less mistakes.
Follow Matrix Math for more calculator hacks students should know. 📱🧮

Most students use only 10% of their calculator’s functions.

The triple comma button is one of the most underrated shortcuts on the calculator — and it can instantly convert decimal hours into hours, minutes and seconds.
3.67 hours?

One few clicks later:
3 hours 40 minutes 12 seconds.
Simple hack. Faster working. Less mistakes.
Follow Matrix Math for more calculator hacks students should know. 📱🧮
matrixmathsg

Visualisation Challenge

How many cubes can be added to this solid without changing the front view or side view?

This is a common trap in cube visualisation questions.
Students often count only what they can see, but the key is to ask:

“What is the maximum height allowed at each hidden position?”

Answer: 4 cubes

At Matrix Math, we train students to approach visualisation questions systematically, not by guessing from the 3D picture.

Primary 6 St Nicholas Term 2 WA 2025 Math Review

Primary 5 CHIJ St Nicholas Primary Term 2 Math WA Review

Did you know the Great Pyramid has some amazing math behind it?

Its base is almost a perfect square, with all four sides nearly the same length.

And here’s the surprising part — if you divide its base perimeter by twice its height, the answer is very close to π.

A beautiful example of geometry in real life.