BRAIN TEASERS

enter your answer and press button OK

Calculate the number 1390

NUMBERMANIA: Calculate the number 1390 using numbers [5, 1, 7, 8, 61, 470] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 2

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Tiny Pieces Of Paper

Picking up this tiny piece of paper would take 2 seconds...
But instead I'm going to run it over 100 times with my vacuum at different angles.

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...

Jean Servais Stas

Born 21 Aug 1813; died 13 Dec 1891 at age 78.Belgian chemist, notable for his accurate determinations of atomic weights. He had worked under the direction of Dumas, with whom he established the atomic weight of carbon. Stas worked assiduously to make more accurate measurements of other atomic weights than had ever been done before. Stas wished to prove the hypothesis of Joseph Proust, that all atoms were conglomerations of hydrogen atoms, though this could not be achieved. Stas was probably the most skilful chemical analyst of the nineteenth century.

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.