THE LATTICE
A twin-stick arena strung on a mass-spring grid. Shoot a composite husk and it splits along a factor pair; primes cannot be split, so primes are what is left to sweep. Fly into the resonator holding the primes that multiply to what it is asking.
Addition & subtraction
The pack suggests age 8 and up. The difficulty itself follows the player, not the age.
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What it covers
THE LATTICE draws its questions from these parts of the curriculum. Which of them a player sees, and how hard the questions are, follows the player.
Addition & subtraction
- Column addition without regrouping
- Column subtraction without regrouping
- Multi-digit addition with regrouping
- Multi-digit subtraction with regrouping
- Adding a short addend with regrouping
- Subtracting a short subtrahend with regrouping
- Subtracting across zero