Number Towers: Sums
Start with coloured towers, then move towards number-only addition when the child feels ready.
Stage 1 · Towers and labels
Stage 2 · Bigger towers
Stage 3 · Numbers first, towers still helping
Stage 4 · Numbers only
Grown-up answer key
1. 3
2. 4
3. 6
4. 8
5. 7
6. 12