基礎数学シリーズ

Twenty three cities have hosted the Summer Olympics at least once. Can you click them all without making any mistakes?

Uh oh, my literary character is happy, but that’s such a boring word! Help me by clicking only words that mean “happy”.

Drag the flag onto the correct state. Careful, though! One wrong move and the game ends.

Drag the pin onto the correct country. Careful, though! Three wrong moves and the game ends.