Area of triangle |
Zero sequence |
U turn |

Divisibility by 4 |
Numbers ratio |
Tan-Sin |

Oh-matrix |
Tommorow's day |
Test |

Cubical squares |
Sum of four |
2020 digit |

Temirlan's cake |
Odd polynomial |
Triangle in hyperbola |

Odd divisors |
Just sequence |
One three-digit number |

Expanding brackets |
C Sum |
Positive product of sums |

Product of differences |
Friendly rooks |
Function |

Squared fours |
Relatively prime with 2020 |
2+1 |

Random answer |
Sum of digits 2020 |
2020 Palindromes |

Not your business |
Tricky polynomial |
Bingo! |

Switchers |
Weird equation |
Simple expression |

Sum probability |
Sqaure in square |
Similar polynomials |

Equilateral Triangles |
All such |
Money date |

5 instead of 1 |
Small triangular numbers |
Permutational Polynomial |

5th power equation |
Bools and cows |
Polynomial without 4 |

Exactly two roots |
Math lesson |
Minimizing Fibb |

Viet said |
6 Apart |
Solutions on the interval |

Arithmetic derivative |
Square multiples of 24 |
Tricky sequence |

Four on a circle |
Diameter |
Novirus |

Convex triangle |
Too much |
Point O |

Sequenta |
MTMTK System |
First geometry |

Special square |
x[x] |
Fancy integral |

Angle chasing |
Fancy limit |
Many digits |

Parking |
Cool-divisble numbers |
Almost squared numbers |

VNT |
What a function |
!Fancy cubic |

!Fancy polygon |
Orthocenter |
Prime powers |

Progressive sequence |
NRD pair |
Half of Octahedron |

Fancy meal |
More dominos |
Infinite game |

Where is my husband |
ADAD |
Powered Numbers |

Subsets Collection |
ADAD (Duplicate) |
Lucky numbers |

Flip |
Powered Numbers (Duplicate) |
Nice polynomial |

Equiangular Hexagon |
Also palindrome |
D Flags |

Daniyar's Friends |
Total inversion |
Pentagon |

Concetric |
Not fibbo |
6-sums |

New FE |
Unfair Game |
Gineq |

Sharp inequality |
Polynomial Probability |
Digital Cubes |

Simple sum |
Base4 |
0,1,2 polynomial |

Small triangle |
Lin's Octagon |
Just Easy Sum |

Factorial Factor |
Reverse Product |
Binary Sum |

Sum of Digits |
Discriminant |
Maximum of Minimum |

Regular Polygons |
Sequence |
Fractions |

Five Primes |
Triangle in Hexagon |
Rational Polynomial |

Rational Irrational |