Anyone comfortable with two-digit addition/subtraction and times tables; adults can use it as a warm-up.

Twenty cards per level gives clear progress and prevents grinding all 1000 at once.

Where is progress stored?

Only in local localStorage, never uploaded; full backup/restore is available.

LEARNING GAME

Mental Math: 1000 Gamified Add/Subtract/Multiply/Divide Cards

Turn mental math into a game: 20 cards per level, unlock the next after finishing; missed cards return on a 1/3/7/14/30/60/120-day curve. It covers two-digit addition/subtraction, times tables and exact division, ideal for 5-10 minutes a day.

0Due today

0New cards

0Day streak

0Lv.1 · 0/100

Progress is stored locally in localStorage and is lost if you clear storage. Reviews use 1/3/7/14/30/60/120-day intervals.