A SMALL PRACTICE FOR TODAY
A few sums. A fresh start.
A short set of addition, subtraction, multiplication and division. Each skill finds its own level. No streaks to protect, no catching up.
What the research can say
Try a strategy as well as an answer: split a sum, round then adjust, or turn division into multiplication. This practice is for arithmetic fluency. A higher practice score is not evidence of a higher IQ.
Each operation has its own level. Of its 3 questions, 3 correct moves it up one level; 1 or fewer moves it down. Otherwise it stays steady. Levels stay between 1 and 5.
Retrieval practice can help retain learned material (Roediger & Karpicke, 2006). Their experiments used prose, not this arithmetic trainer. We offer arithmetic practice, not a proven programme for broader cognitive improvement.
A review by Simons and colleagues (2016) found much stronger evidence for improvement on trained tasks than for broad transfer. These tools are practice activities, not diagnostic tests or medical advice.
Want a timed snapshot? Try the mental math test
A few useful answers
Is every part free?
Yes. Every level, the image list, history and backups are free, without signup or ads.
Where is my progress saved?
Only in this browser’s local storage. Practice answers and mnemonic notes are not uploaded. Export and import a JSON backup to move your data.
Will this improve my IQ or general memory?
We do not make that claim. Better performance here mainly tells you about this practised skill, with these settings.
What if I miss a day?
Nothing resets. Each operation keeps its level. Practise when you want, as often as you want.
Sources & further reading
- Dresler et al. (2017). Mnemonic training reshapes brain networks to support superior memory. Neuron.
- Simons et al. (2016). Do “brain-training” programs work? Psychological Science in the Public Interest.
- Roediger & Karpicke (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science.
Make space for a daily practice with Helibrain
Explore Helibrain’s recommendations and find what works for your days. These free trainers do not require the app.
Start free in your browser
