✳ number grove.
Choose a profile to sync your grove.
A LITTLE PRACTICE. A LOT OF POSSIBILITY.

Big discoveries.
Little by little.

A curious mind grows with every challenge.
Pick a game, give it a go, and see what clicks.

✦   Your next “aha!” moment is waiting.

Your daily dose of discovery

Small challenges, big brain energy →
THE NUMBER PUZZLE★ FAMILY FAVORITE

Kakooma-style
number hunt

Two numbers make a third.
Can you spot the hidden connection?

◷ Untimed   ·   Hints included
✦   A little addition. A lovely big aha.
A FRESH WAY TO PLAY

The 60-second sprint ⚡

Find as many hidden sums as you can. Chase your own best!

Personal best: 0

A different kind of brain stretch

Follow your curiosity

Build it. See it. Understand it.

Number sense, one connection at a time

Move from hands-on models to pictures and equations. Take your time — these are thinking games.

Take the learning offline.

Fresh printable puzzles, with an optional answer key.

✳   Mistakes welcome. Curiosity encouraged.Made for growing minds, ages 8–12.
NUMBER HUNT
HELLO, GROWN-UPS

A little practice, without the pressure.

Choose a learner at the top. Each has separate progress and an age-based starting difficulty. Number Hunt is an independently made Kakooma-style addition game: find the sum in each group, then solve a final group with your answers.

Other games practice multiplication, sequences, and money in dollars. Practice games are untimed with free hints. The optional 60-second sprint counts correct hidden sums, with separate personal bests for each learner. Its clock keeps running if you switch tabs. Finishing a sprint counts toward the daily goal; leaving early does not save a score. Mistakes never remove stars. Ava, Julia, and Mia each have a four-digit profile PIN, checked on the server. Their progress and high scores sync across devices. Enter your shared family access code once on each device, then unlock the matching child’s profile. The family code is remembered for 30 days. Completed games waiting to sync stay on the device until that profile reconnects. Existing browser progress is imported once per profile. Set up the PINs together.

The visual number-sense activities explore number bonds, base-10 trading, and fractions through models and equations. Their approach draws inspiration from Tang Math’s public teaching materials. These are original Number Grove activities, independently created and not affiliated with Tang Math.