BRAIN TEASERS

enter your answer and press button OK

Calculate the number 2030

NUMBERMANIA: Calculate the number 2030 using numbers [9, 8, 3, 7, 35, 201] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 18

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Chuck Norris has the greatest ...

Chuck Norris has the greatest Poker-Face of all time. He won the 1983 World Series of Poker, despite holding only a Joker, a Get out of Jail Free Monopoloy card, a 2 of clubs, 7 of spades and a green #4 card from the game UNO.

Jokes of the day - Daily updated jokes. New jokes every day.

Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

Protectograph

In 1904, the Protectograph check-writing machine was patented under the title “Printing-Stamp” by Libanus McLouth Todd of Rochester, New York (U.S. Patent No. 766,853). It was designed to protect against check forgers by marking and embossing the amount on a check, thereby preventing the amount thus shown to be later dishonestly changed to a higher value. The apparatus had co-axial printing wheels with lines of raised type forming a series of numbers and suitable words. A check would be placed between the wheels and a platen. An inked felt-covered roller applied ink to the type as the wheels were turned to select the chosen imprint. The platen surface had a yielding material, such as rubber. When actuated by a hand-lever, it was raised from beneath the check and embossed the paper against the type.«

This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.