Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 378
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
Roller skatesIn 1884, the first U.S. patent for ball-bearing roller skates was issued to Levant M. Richardson of the Richardson Skate Company, Chicago, Illinois. This design allowed until then unseen speed. (No. 308,990) |