**Complete to solve $18+ 62$.**
$\phantom{=}18+62$
$=(10+$ [[☃ math-keypad 1]]$)+ 62$
$=10 + ($[[☃ math-keypad 2]] $+62)$
$=10 + $ [[☃ math-keypad 3]]$$
$=$ [[☃ math-keypad 4]]
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