彼は数学が得意です。

彼は数学が得意です。

He is good at mathematics.

彼(かれ)は数学(すうがく)が得意(とくい)です。

Kare wa sūgaku ga tokui desu.

彼 (かれ)

he; him; his; boyfriend

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

数学 (すうがく)

mathematics; arithmetic

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

得意 (とくい)

triumph; prosperity; pride; one's strong point; one's forte; one's specialty; frequent customer (client, etc.)

です (です)

be; is

Readings: ヒ、かれ、かの、か.の

Meanings: he, that, the

Readings: スウ、ス、サク、ソク、シュ、かず、かぞ.える、しばしば、せ.める、わずらわ.しい

Meanings: number, strength, fate, law, figures

Readings: ガク、まな.ぶ

Meanings: study, learning, science

Readings: トク、え.る、う.る

Meanings: gain, get, find, earn, acquire, can, may, able to, profit, advantage, benefit

Reading: イ

Meanings: idea, mind, heart, taste, thought, desire, care, liking