Click on the calculator buttons: Listen & Download Click on the calculator buttons .mp3 Error! Change your browser, please! ⇓ Download Throw a ballpoint pen on the table ⚠ Stapler ⚠ Put ballpoint pen on paper ⚠ Scissors cutting paper ⚠ Pen writing ⚠ Removing the ballpoint pen cap ⚠ Rubber stamp ⚠ Hole puncher ⚠ Press a button, Ballpoint pen machine, write ⚠ Put the ballpoint pen on the table ⚠ Crunching paper rustling ⚠ Eraser ⚠ ★★★★★