Addition
Add numbers quickly using left-to-right strategies instead of traditional right-to-left carry.
Add left-to-right: biggest chunk first, smallest last. Never carry in your head.
Visual Methods
Level Visual Guides
30 levels. Each level opens as 6 visual blocks.
Level 1 - foundation
1-digit + 1-digit
6 image blocks
Level 2 - foundation
2d + 1d (no carry)
6 image blocks
Level 3 - realistic untimed
2d + 1d (with carry)
6 image blocks
Level 4 - foundation
Mixed 1d/2d + 1d
6 image blocks
Level 5 - foundation
2d + 1d (sum < 100)
6 image blocks
Level 6 - foundation
2d + 2d (no carry)
6 image blocks
Level 7 - foundation
2d + 2d (ones carry)
6 image blocks
Level 8 - realistic untimed
2d + 2d (both carry)
6 image blocks
Level 9 - foundation
2d + 2d (any)
6 image blocks
Level 10 - foundation
2d + 2d (mastery)
6 image blocks
Level 11 - build-up
3d + 2d (no carry)
6 image blocks
Level 12 - build-up
3d + 2d (ones carry)
6 image blocks
Level 13 - realistic untimed
3d + 2d (both carry)
6 image blocks
Level 14 - build-up
3d + 2d (any)
6 image blocks
Level 15 - build-up
3d + 2d (mastery)
6 image blocks
Level 16 - build-up
3d + 3d (no carry)
6 image blocks
Level 17 - build-up
3d + 3d (ones carry)
6 image blocks
Level 18 - realistic untimed
3d + 3d (overflow)
6 image blocks
Level 19 - build-up
3d + 3d (any)
6 image blocks
Level 20 - build-up
3d + 3d (mastery)
6 image blocks
Level 21 - mastery
4d + 3d (no carry)
6 image blocks
Level 22 - mastery
4d + 3d (ones carry)
6 image blocks
Level 23 - realistic untimed
4d + 3d (overflow)
6 image blocks
Level 24 - mastery
4d + 3d (any)
6 image blocks
Level 25 - mastery
4d + 3d (mastery)
6 image blocks
Level 26 - mastery
4d + 4d (no carry)
6 image blocks
Level 27 - mastery
4d + 4d (ones carry)
6 image blocks
Level 28 - realistic untimed
4d + 4d (overflow)
6 image blocks
Level 29 - mastery
4d + 4d (any)
6 image blocks
Level 30 - mastery
4d + 4d (mastery)
6 image blocks