Question

52 × 19 =?

• A. 970
• B. 988
• C. 968
• D. 998

Answer 1

Answer:

A. 970

52 × 19 = (50 + 2)(20 -1) = 50 × 20 - 50 × 1 + 2 × 20 - 10 × 2 = 1000 - 50 + 40 - 20 = 970