Random Challenge
Get a mix of questions from all categories.
Arithmetic Series
Constant difference between numbers.
Geometric Series
Constant ratio between numbers.
Square/Cube Series
Series based on squares or cubes.
Mixed Operations Series
Combination of multiple arithmetic operations.
Alternating Series
Operations alternate in a pattern.
Fibonacci Series
Each term is the sum of the previous two.
Difference of Differences
Second-level pattern in differences.
Prime Number Series
Based on prime numbers.
Even/Odd Series
Series based on even or odd numbers.
Pattern in Digits
Focus on digits rather than value.
Multiple Operations
Use of ×, +, − together.
Reverse Series
Series runs in reverse order.
Fraction/Decimal Series
Involving fractions or decimals.
Exponential Series
Pattern in powers.
Algebraic Pattern
Use formulas like n²+1, n²−1, etc.
Triangular Numbers
Numbers from the triangular number formula.
Factorial Series
Based on factorials n!
Repeating Patterns
Pattern repeats after a fixed number.
Digit-Sum Series
Based on the sum of digits.
Coding-Based Series
Based on coding like A=1, B=2...
Squares
Recite the squares of consecutive numbers (from 1 to 40).
Cubes
Recite the cubes of consecutive numbers (from 1 to 20).
Tables
Recite 10 consecutive multiples of a given number (from 2 to 30).
Consecutive Multiplication
Multiply a number by the next consecutive integer.