Question

Calculate the following expression by applying distributive property:
71 × 69

• A. 4,899
• B. 8,994
• C. 4,879
• D. 4,799

Answer 1

The correct option is A 4,899

71 × 69
= (70 + 1) × 69
(by applying distributive property)
= 70 × 69 + 69 × 1
= 70 × 69 + 69
= 70 × (70 - 1) + 69
(by applying distributive property)
= 70 × 70 - 70 + 69
= 4,900 - 70 + 69
= 4,900 - 1
= 4,899