sstrike's answer to Russell Tan's Primary 6 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
sstrike
Sstrike's answer
5565 answers (A Helpful Person)
- item unchanged concept 【highlighted in yellow】

- from A(L) "at first" to the "end" A(V) 【refer to the arrow sign】