Aug 26, 2025
5 min read
For the past 3 years, our teachers have recorded numerous videos on APMOPS and RMO questions in detail.
Below is a compilation of such APMOPS videos that we have in store.
APMOPS (Chinese Explanation)
Calculation
Complex Fractions https://www.youtube.com/watch?v=M1sEi2al1x0
Sum of Digits https://www.youtube.com/watch?v=phfpFWuLzXQ
Number Theory
Factors and Multiples https://www.youtube.com/watch?v=iCcemXdLaJ4
Divisibility Test https://www.youtube.com/watch?v=yBP2fsx5OKA
Insert Board Method https://www.youtube.com/watch?v=j9IMMUOQIAo
Place Value https://www.youtube.com/watch?v=fSA1N7X186U
Special Prime Numbers https://www.youtube.com/watch?v=llNWf3yqFLg
Euclidean Algorithm https://www.youtube.com/watch?v=fSA1N7X186U
Extremal Problems in Number Theory https://www.youtube.com/watch?v=Gaib773P4Oo
Remainder Problems https://www.youtube.com/watch?v=sUvm5wdEGqc
Diophantine Equations https://www.youtube.com/watch?v=-z9yodcZI1M
Short Division https://www.youtube.com/watch?v=e4678ju5V8I
Prime and Composite Numbers https://www.youtube.com/watch?v=6pgtSqcQxWI
Geometry
Regular Polygons and Sectors https://www.youtube.com/watch?v=bEOJRYlqu6M
Butterfly Model https://www.youtube.com/watch?v=PGFugNEpTa0
Area of Rotating Figure https://www.youtube.com/watch?v=DLmgnBKQDF4
Equal Area Transformation https://www.youtube.com/watch?v=RKWS6ewcEI0
Butterfly Model 2 https://www.youtube.com/watch?v=YBWaXptNGhA
Kite Model https://www.youtube.com/watch?v=vODpH7e2qrQ
Equal Height Model https://www.youtube.com/watch?v=DuEMYV_vj08
Angle Calculation https://www.youtube.com/watch?v=AOZntnSiP7w
Travel Problems
General Travel Problem https://www.youtube.com/watch?v=0ZemNTdcKB0
Counting
Figure Counting https://www.youtube.com/watch?v=xfsAihCP8_8
Counting Problem https://www.youtube.com/watch?v=1ActQ9nIww8
Figure Counting with Number Theorem https://www.youtube.com/watch?v=91DD0oVHohw
Combination and Permutation https://www.youtube.com/watch?v=3-b7HXE5ccQ
Thinking Backwards https://www.youtube.com/watch?v=9Wty2Hd4mYQ
Mixed Questions
Parity Analysis and Extreme Analysis https://www.youtube.com/watch?v=lQDPI1PoG80
Dyeing Questions https://www.youtube.com/watch?v=GfHpGe_mG5w
Number Table Problem https://www.youtube.com/watch?v=nw5PCgxPEq4
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