Passionate Mathematician Being Mathematics is… Mathematics Sonnet Potentialize the Puzzles of the Universe Natural Numbers and Their Operations In Maths Practicing Mathematics The Natural Family Empowerment Rap Between Numbers and Letters Mathematical Romance Your Way of Being The Quotient Geometric Heart The numbers Root Operations Operations with Rational Numbers 3 4 5 6 Next >> Did you write a mathematical poem?

He was a Portuguese mathematician and university professor. Born on April 1, 1901, in Rua dos Fidalgos, in Vila Viçosa, in a modest dependence of the Chagas Convent, where some servants of the house of Bragança were housed, Bento de Jesus Caraça was the son of rural workers. He lived the first five years of his life in the Casa Branca estate, in the parish of Montoito, where he learned to read and write with a worker, José Percheiro.

Ask the person with a calculator: 1) Enter their first 4 phone numbers; 2) Multiply by 80; 3rd) Add 1; 4º) Multiply by 250; 5) Add the last 4 numbers of her phone; 6) Add once again the last 4 numbers of her phone; 7) Subtract 250; 8) Divide 2.

In a small town, there is only one barbershop. Not all men in town go to the barber shop. Thus, the city's male population can be divided into two groups: those who shave alone and those who go to the barber. So we assume the barber shaves all men who don't shave themselves, right?

It is interesting to think of the points on the Euclidean line (the line of geometry you knew in elementary school) as numbers. This invention was responsible for a great revolution in seventeenth-century mathematics. It is the famous Cartesian coordinate idea. With it we can think of geometric problems using numbers and thus algebra.

Possible values for x? We can write the expression as follows: This number is integer if and only if x + 19 is a divisor of 80. Since 80 has 10 integer divisors, then there are 10 possible values for x. Back to statement Challenge 27 What is the division quotient? Challenges Index Next >> Challenge 29 The Number 1234512345123451234512345