🧮 Abacus Practice Generator

Mental Math Training | Addition & Subtraction of Positive Numbers

Sequence: 1/4

Start?

ℹ️ Only positive numbers with addition and subtraction. Sum stays positive and under limit.

📊 Numbers per Sequence

⏱️ Display Time (seconds)

2.0s

⏸️ Pause Time (seconds)

1.0s

Max Number 25

Max Sum 99

📊 Session Statistics

00:00

Session Time

Sequences Completed

Click "Start Practice" to begin the abacus mental math exercise
Numbers appear with + or - operators (only positive numbers, 1-3 digits)
First number is always positive, subsequent operations ensure sum stays positive
Total sum is limited by the "Max Sum" setting to keep calculations manageable
After each sequence, there's a pause to calculate the total mentally
Answers appear in the Results section only when you click "Stop Practice"
Adjust settings to customize difficulty, timing, and sum limits
Review your performance in the Results section after completing sequences