$43+22\backslash textcolor\{ff6600\}\{4\}\backslash textcolor\{660099\}\{3\}+\backslash textcolor\{009999\}\{2\}\backslash textcolor\{cc0000\}\{2\}$

First add the 10s.

$40+20=60\backslash textcolor\{ff6600\}\{4\}0+\backslash textcolor\{009999\}\{2\}0=60$

Now add the 1s of the first number.

$60+3=6360+\backslash textcolor\{660099\}\{3\}=63$

And now the 1s of the second number.

$63+2=6563+\backslash textcolor\{cc0000\}\{2\}=65$

$28+53\backslash textcolor\{ff6600\}\{2\}\backslash textcolor\{660099\}\{8\}+\backslash textcolor\{009999\}\{5\}\backslash textcolor\{cc0000\}\{3\}$

First add the 10s.

$20+50=70\backslash textcolor\{ff6600\}\{2\}0+\backslash textcolor\{009999\}\{5\}0=70$

Add the 1s of the first number.

$70+8=7870+\backslash textcolor\{660099\}\{8\}=78$

To do this, add the 1s of the second number.

$78+3=8178+\backslash textcolor\{cc0000\}\{3\}=81$

$17+83\backslash textcolor\{ff6600\}\{1\}\backslash textcolor\{660099\}\{7\}+\backslash textcolor\{009999\}\{8\}\backslash textcolor\{cc0000\}\{3\}$

First add the 10s.

$10+80=90\backslash textcolor\{ff6600\}\{1\}0+\backslash textcolor\{009999\}\{8\}0=90$

Add the 1s of the first number.

$90+7=9790+\backslash textcolor\{660099\}\{7\}=97$

To do this, add the 1s of the second number.

$97+3=10097+\backslash textcolor\{cc0000\}\{3\}=100$