Question

26 × 17 = ?

• A. 422
• B. 441
• C. 442
• D. 392

Answer 1

Answer:

C. 442

26 × 17 = (30 - 4)(20 - 3)

= (30 × 20) - (30 × 3) - (4 × 20) + (4 × 3)

= 600-90-80+12

= 612-170

= 442