3333•3333

11,108,889

Sketch of method: 3333 × 3333 = 3333 × (3000 + 333) = 9,999,000 + 3333×333 3333×333 = 3333×(300 + 30 + 3) = 999,900 + 99,990 + 9,999 = 1,109,889 Total = 9,999,000 + 1,109,889 = 11,108,889