A systematic review of interventions for acalculia following a stroke or brain injury.

= 18). Most interventions (10) targeted relearning of multiplication tables, followed by interventions for transcoding (4). All interventions were delivered individually (no group interventions) and mostly tailored to individual patients. The most common delivery method was intense repetition ("drill"), and most interventions were conducted in French or German, with only one delivered in non-European language (Japanese), despite evidence for linguistic and cultural effects on numerical skills. Findings highlight the scarcity of evidence for acalculia interventions, and the discussion explores suggestions for future interventions. Urgent work is required to improve provisions for patients.