Philippinesball/English and Mathematics

Philippinesball invented many English vocabulary words and mathematical concepts as part of its new and improved education. The country has a K-12 curriculum. That means that school starts in Kindergarten and ends in 12th grade.

English vocabulary
New English-style words replace old words mostly to analogize with other English words. Many mathematical terms are modified.

Note: Some words are modified only for certain usages.

Mathematical concepts
This list needs more investment.

Divisorial
Divisorial is a mathematical operation where a positive integer x is divided by the preceding positive integers. The name of the operation is named after Divisoria, a place in Manilaball.

Formula
¡x = x/(x-1)/(x-2)/(x-3)... 3/2/1

Subtractorial
Subtractorial is a mathematical operation where a positive integer x is subtracted by the preceding positive integers. The name of the operation analogizes with divisorial.

Formula
¿x = x - (x - 1) - (x - 2) - (x - 3)... 3 - 2 - 1

Additorial
Additorial is a mathematical operation where a positive integer x is added by the preceding positive integers.

Formula
x? = x + (x - 1) + (x - 2) + (x - 3)... 3 + 2 + 1