Fun, joy, leisure and happy childhood and education concept. White little girl in casual yellow dress making mask, holding purple puzzle with number three * logic; object; hands; arithmetic; smart; elementary; multiplication; primary; three; educational; math; colorful; study; activity; color; toy; puzzle; geometry; preschooler; girl; education; fun; child; school; play; childhood; learn; kid; mathematics; square; development; toddler; numbers; baby; leisure; game; shape; block; number; construct