Click on the calculator buttons: Listen & Download Click on the calculator buttons .mp3 Error! Change your browser, please! ⇓ Download Marker writing ⚠ Putting on the ballpoint pen ⚠ Tear off tape ⚠ Put ballpoint pen on paper ⚠ Eraser ⚠ Crunching paper rustling ⚠ Put the ballpoint pen on the table ⚠ Electric pencil sharpener ⚠ Pencil writing on paper ⚠ Pen writing ⚠ Chalk writing on the blackboard ⚠ Put the cap on the marker ⚠ ★★★★★