Always free
Speed drills
Fast mental math is half the assessment. Warm up daily, beat your own time.
Tables
100 multiplications from the tables of 2 to 12.
100 problemsStart →
Division
100 divisions, the tables in reverse.
100 problemsStart →
Squares
The squares of 2 to 25, the backbone of many sequences.
24 problemsStart →
Differences
100 subtractions, the first step of every sequence.
100 problemsStart →