Kani Math
Cosmic Abacus
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For parents

Home abacus practice plan

Answer three questions and get a week of ten-minute sessions, matched to your child’s level and printable for the fridge door. Every activity names its page — tap it on screen or type the address on any device.

No signup. The plan is built right here and printed by you — nothing is stored.

Practice days per week
What should the week lean into?

The week at a glance

  1. Day 110 minutes
    Level drill — Elementary A kani-math.com/practice/small-friends-5-complement
  2. Day 210 minutes
    Flash anzan round kani-math.com/tools/flash-anzan
  3. Day 310 minutes
    Mixed addition & subtraction round kani-math.com/practice/mixed-addition-subtraction-drills
  4. Day 410 minutes
    Mental math speed test — note the time kani-math.com/practice/mental-math-speed-test
  5. Day 510 minutes
    Re-take the level check — did the week move anything? kani-math.com/tools/abacus-level-check

Each activity lists its address on the printed sheet — type it on any phone or tablet.

Kani Math is free mental math practice for kids. It’s free, and it always will be.

Get it on the App Store and Google Play, or practice on the web at kani-math.com.

Stick it on the fridge and tick a box each day — the streak is the point, not the score.

Ten minutes daily beats an hour on Saturday. If a day is lost, skip it — never double up; the plan restarts every week anyway.

Prefer it automatic? The free app tracks practice by itself →

Common questions

How many minutes a day should a child practice the abacus?
Ten. Every day in the generated plan is one ten-minute session, because short daily repetition builds bead reflexes better than a single long sitting at the weekend. If a day is missed, skip it rather than doubling up: the plan restarts every week, and the unbroken run of ticked boxes is what the tracker is actually rewarding.
How many days a week should we practice?
Choose three, five or seven; five is the default and the shape most families sustain. Three days gives a level drill, one focus round and a re-check. Five adds a varied round and a second focus day. Seven repeats the level drill later in the week and adds a printed worksheet, or a free-choice day if you picked Technique.
What is in one ten-minute session?
One named activity with its web address, not a menu to choose from. Day one is always the drill for the rung you picked. The rest follows the focus: Speed gives a flash anzan round and a timed speed test, Listening gives numbers-by-ear drills, Technique gives number bonds and a worksheet. The last day re-takes the level check.
Do we need the app or an account to follow the plan?
No. Every activity is a free practice page on this site, and the printed sheet spells out each address so any phone or tablet reaches it by typing. The plan is a pure function of your three choices; nothing about your child is stored. The free app tracks practice by itself if you would rather not tick boxes.
How do we keep track of whether it is working?
The printed plan puts an empty checkbox beside each day: stick it on the fridge and tick one a day for showing up, not for the score. The re-check day answers the other half — it re-runs the level check, so a week that moved the recommended rung shows it. Reprint whenever the level or focus changes.
See all questions →