Combinatorial mathematics is a branch of mathematics that studies the combinations of things.

The number subtracted from the minuend is called the subtrahend.

He is studying phallicism.

Hydrocarbon is a basic element of chemical reactions.

He lined his pockets with that project.

He was taken to the hospital because of pulmonary edema.

He solved a large number of problems.

I love mathematics.

In the traditional Japanese number system, Muryo-taisu represents a very large number.

He is good at arithmetic.