$113+20=133$113+20=133

Use this to find:

$113+30=\editable{}$113+30=

$113+40=\editable{}$113+40=

$113+50=\editable{}$113+50=

$113+70=\editable{}$113+70=

$10+111=121$10+111=121

We know that $18-3=15$18−3=15.

$113+24=137$113+24=137