Weak in your spatial visualization to solve such question? ;p
Want to learn alternative method?
Watch the video to find out! :)
Then use this alternative method to try Q1! :)
Are you always stuck at such question?
Learn alternative way to find the number of painted faces WITHOUT missing any faces!
Do you know that for Q8, you can also use the same method shown on Q7? Try it! ;p
Do you manage to get 12 unpainted faces?! ;p
If no, watch the video to find out which face(s) you have missed!
Are you weak on finding the number of cubes that have none, 1, 2 or 3 faces painted in a solid that was dipped into a pail of paint?
Want to know the trick on how to find it easily? ;p
Watch the video to find out! Hope you will find it useful! :)
With that method and try it on Q11! But of course, you must cut the block into 1-cm cubes first! ;p
This question is similar to one of the PSLE questions years ago.
You can give it a try first before watching the video to check the answer! :)
Weak in your spatial visualization on such question? ;p Watch the video to find out a shorter way then! ;p
To solve part (b), is Guess & Check the ONLY method to get the answer? ;p (P.S.: It was similar to one of the PSLE questions too! ;p)
OF COURSE NOT!
When there is an internal transfer of water, what remain unchanged? ;p
Watch the video to find out to see if you get the concept correct! :)
Use this concept and try out Q14! :)