COLOSSUS
You are the giant. A keystone carries a sum; the tower carries numbers. Punch out the floors whose product matches the keystone and the tower comes down on top of you. Strike wrong and the tower gets taller.
Addition & subtraction
The pack suggests age 5 and up. The difficulty itself follows the player, not the age.
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What it covers
COLOSSUS 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