His mother asked him to figure out a mathematical problem.

He began to work on mathematical problems that made sense.

He worked on other mathematical problems but was less successful.

At once he would demand the answer to the mathematical problem.

He had begun by doing mathematical problems in his head.

That evening at home he sat down to it as a mathematical problem.

"Look I've worked out the mathematical problems on the defense.

I'd like to work out some of the mathematical problems involved."

The mathematical problem therefore is solved by a physical model of itself.

There was a range of supporting material including story books with mathematical problems.

They are capable of quickly and precisely working out any mathematical problem.

His early work was on certain mathematical problems from the theory of combustion.

Computers at the time could solve very specific mathematical problems, but not much else.

I wouldn't even know what a mathematical problem looked like.'

Finding the minimum number of cuts needed is an interesting mathematical problem.

In turn, it also describes how physiological questions can lead to new mathematical problems.

An Inca system for working out mathematical problems and record keeping.

This brought new and weighty mathematical problems into the picture which we could not get involved in at the moment.

During this period, Wigner developed an interest in mathematical problems.

The mathematical problems involved were getting too big for even an Arkonide brain.

I started to find great relaxation in playing with mathematical problems and puzzles.

They simply aren't accustomed to the austerity of mathematical problems.

My head reeled when I recalled the mathematical problems involved.

Like hiring Google to help solve a mathematical problem or what have you.

He in turn creates a mathematical problem for them: two answers are required of readers.