Number Island

Number Island is a daily math puzzle that challenges your number sense and problem-solving skills. Your mission is to form groups of adjacent numbers on a grid that match a set of target totals. The twist? You must use only horizontally or vertically connected cells to create your “islands.”

• Each puzzle starts with a grid of numbers and a list of target totals.
• Click cells to highlight them; adjacent cells form an island.
• When the sum of your island matches a target, both turn blue.
• Complete all targets to win the puzzle.
• Difficulty levels range from easy to “Omniscient,” with more targets and larger grids.
• A new puzzle drops daily, offering fresh challenges for all skill levels.

Why we like it:

• ✅Sneaky-smart learning that makes math fun and engaging.
• ✅Builds core arithmetic skills like addition fluency and number flexibility.
• ✅Encourages persistence and problem-solving through trial and error.

Hint: Start with smaller targets to reduce complexity, and look for isolated numbers or “trapped” groups that might form ready-made islands.