Mental Math Trainer

Time Limit

Multiplication • 0 / 0
0.00s
12 × 8
0 Correct
0% Accuracy
0.0s Avg Time

Session Complete!

0 Problems Solved
0% Accuracy
0.0s Average Time
0.0s Best Time

Analytics

Speedcubing Averages

These averages remove the best and worst times to reduce outlier impact.

-- Ao5 Last 5 (minus best/worst)
-- Ao12 Last 12 (minus best/worst)

Overall Performance

0 Total Problems
0% Overall Accuracy
-- Average Time
-- Personal Best

Performance by Operation

How Metrics Are Calculated

Accuracy

(Correct ÷ Total) × 100%

Percentage of problems answered correctly.

Average Time

Σ(times) ÷ n

Arithmetic mean of all solve times.

Ao5 (Average of 5)

mean(last5 - best - worst)

Take last 5 times, remove fastest & slowest, average the remaining 3.

Ao12 (Average of 12)

mean(last12 - best - worst)

Take last 12 times, remove fastest & slowest, average the remaining 10.

History

Settings

Difficulty

Personal Challenge

Data Management

This will permanently delete all your progress and cannot be undone.

Power Table (xⁿ)

x \ n
Rows: Base Number (x) • Columns: Exponent (n)

Multiplication Table

×
Rows: Multiplicand • Columns: Multiplier