A truck delivered 538 packages daily for 6 days, and another truck delivered 247 packages daily for 9 days. How many packages were delivered in total, and what is the difference?
First truck: 538 × 6 = 3 , 228 538×6=3,228 packages Second truck: 247 × 9 = 2 , 223 247×9=2,223 packages Total: 3 , 228 + 2 , 223 = 5 , 451 3,228+2,223=5,451