ALU-V004 · The mountain
The Eights & Nines Summit
He beat Divide and Conquer. Now the mountain: the eights and nines. One hundred pages. He climbs it himself.
Volume 004
The Eights & Nines Summit
Inside this volume
- The ×8 trail — double, double, double
- The ×9 trail and its cheat-code pattern
- Dividing by 3 and 4
- Four-digit take-aways across zeros
- Vowel teams ee, ea, ai, ay
Volume 005 — Full-Table Champion — is waiting. Every table, 2 through 10. He is ready.
Ayaan Learning Universe
Written for Ayaan.
Volume 004
Ayaan Learning Universe
The mountain is slow. You are not. Keep climbing.
For Ayaan.
Inside front cover
Inside this volume
- The ×8 trail — double, double, double
- The ×9 trail and its cheat-code pattern
- Dividing by 3 and 4
- Four-digit take-aways across zeros
- Vowel teams ee, ea, ai, ay
- Change boss: fewest coins from $2
- Contractions, cross-numbers, 6×6 sudoku
Ayaan with his arm around Mila on the stone wall. He grins. She makes her fierce little champion face. Summit photo.
Volume 005 — Full-Table Champion — is waiting. Every table, 2 through 10. He is ready.