2017年9月1日
Proofreading

ENGLISH FIRST

Operasi perkalian

3x3=9

Sama halnya dengan contoh sebelumnya, jika pengoperasian bilangan matematika bisa diucapkan dalam berbagai cara. Operasi perkalian pun memiliki cara yang bermacam-macam yaitu three times three is nine, three times three equals to nine, dan three multipled by three is nine.

The correct one is multiplied.(from the word multiply -> Verb)
Multipled is incorrect because it functions only as Adjective and Noun.

This is a fatal mistake due to "you are teaching English to Indonesian how to say about "perkalian" or multiplication".