Cálculo mental competente
Tabla reducida de multiplicar del
n ×
n
3 × 3, 4 × 4, 5 × 5, 6 × 6, 7 × 7 y 8 × 8
|
|
|
|
|
|
3 × 3, 4 × 4, 5 × 5, 6 × 6, 7 × 7 y 8 × 8
|
|
