NMT / ZNO

Formulas and reference

A compact mathematics reference in two levels: the NMT exam sheet and the full ZNO formula set.

ZNO — full reference · Algebra · 3 formulas
Full ZNO Expanded school formula set. The “NMT” badge marks formulas also present on the compact sheet.
Numbers and absolute value

Absolute value

Absolute value of a number

NMT
\[|a|=\begin{cases}a,&a\ge0\\-a,&a\lt 0\end{cases}\]
6–9 grade

Absolute value of a product

\[|ab|=|a||b|\]
7–9 grade

Absolute value of a quotient

\[\left|\frac ab\right|=\frac{|a|}{|b|}\]
Condition \(b\ne0\)
7–9 grade