VĒRO PIEMĒRUS !
Piemērs:
CIK IR  16 - 2?
VISPIRMS ATŅEM VIENUS.
IR ZINĀMS, KA 6 - 2 = 4
$\begin{array}{l}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}16-2\\ ↙↘\\ 10\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.441em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}6\end{array}$

16 - 2 = 10  +  6  -  2 = 10 + 6  -  2 = 10 + 4  = 14
Piemērs:
CIK IR 20 - 6?
IR ZINĀMS, KA 10 - 6 = 4
$\begin{array}{l}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}20-6\\ ↙↘\\ 10\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.441em}{0ex}}\phantom{\rule{0.147em}{0ex}}10\end{array}$

20 - 6 = 10 + 10 - 6 = 10 + 10 - 6 = 10 + 4 = 14
Piemērs:
CIK IR 17 - 9?
IR ZINĀMS, KA 17 - 7 = 10
$\begin{array}{l}17-9\\ \phantom{\rule{0.588em}{0ex}}↙↘\\ \phantom{\rule{0.735em}{0ex}}7\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.294em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.441em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}2\end{array}$

17 - 9 = 17 - 7 - 2 = 17 - 7 - 2 = 10 - 2 = 8
Piemērs:
CIK IR 37 - 9?
IR ZINĀMS, KA 17 - 7 = 10
TAD 37 - 7 = 30
$\begin{array}{l}37-9\\ \phantom{\rule{0.588em}{0ex}}↙↘\\ \phantom{\rule{0.735em}{0ex}}7\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.294em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.441em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}2\end{array}$

37 - 9 = 37 - 7 - 2 = 37 - 7 - 2 = 30 - 2 = 28