Hi! I have enjoyed using WordReference for translating for a year now. However, this is my first post, so please bear with me. I am translating report cards for the local school district. They list the State Academic Content Standards for English and Math. The student receives a grade based on how they are progressing toward each standard. The fourth grade report card, under the heading "Mathematics - Algebra and Functions", includes the following standard: Know/understand equals added/multiplied to equals are equal I haven't been able to find any information on the internet. If anyone could help me understand this concept in English/translate it to Spanish, I would really appreciate it! ¡Mil gracias!