Calculate the number 489
NUMBERMANIA: Calculate the number 489 using numbers [1, 1, 3, 3, 54, 544] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers: 1
#brainteasers #math #numbermania
Nail MachineIn 1791, Samuel Briggs and his son, Samuel Briggs, Jr. became the first father-son pair to receive a joint U.S. patent. Their invention was a nail-making machine. |