Your calculator only has the + and × buttons. How do you calculate 7 × 8 using only addition?
Quick Answer & Explanation
Add 7 eight times: 7+7+7+7+7+7+7+7 = 56
The answer to this riddle is Add 7 eight times: 7+7+7+7+7+7+7+7 = 56. Difficulty: Easy · Solved by 16,276 puzzle lovers.