Imagine $24+324+3$ as $2424$ blue and $33$ red dots. How many dots do you have in total?

$24+3=2724+3=27$

Think of the calculation as a picture with $66$ red circles and $5555$ yellow stars.

Count the symbols!

$55+6=6155+6=61$

Imagine the calculation as a picture with $3535$ purple triangles and $1818$ blue diamonds.

Count the symbols:

Insgesamt:

$35+18=5335+18=53$