BRAIN TEASERS

enter your answer and press button OK

Calculate the number 1345

NUMBERMANIA: Calculate the number 1345 using numbers [9, 5, 4, 7, 15, 408] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 23

The first user who solved this task is Sanja Šabović.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Great at making Sunday lunches

I told my friend that he'd be great at making Sunday lunches.

Because he's an excellent roaster.

Author: UnstoppablePhoenix /@MasterPhoenix

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...

Clemens Alexander Winkler

Born 26 Dec 1838; died 8 Oct 1904 at age 65. German chemist who discovered the element germanium (1886). He had a background in managing a cobalt glassworks and then on the faculty of the Freiberg School of Mining. Early in his career, he developed new techniques for industrial gas analysis and developed the Winkler gas burette. When, having been asked by the Freiberg Academy of Mining to analyze the mineral argyrodite (a silver sulphide ore), he found that all the known elements it contained amounted to only 93% of its weight. After spending four months tracking down and isolating the remaining 7%, he found the new element he called germanium, for Germany. This turned out to be the third of the elements (eka-silicon) predicted by Dmitry I. Mendeleyev in 1871.«

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.