Note: Don’t forget to carry the 1. To give another example, 58*11 would be 5 + 8 = 13. You can’t just put the 13 between the 5 and the 8 though. That would give 5138, which is obviously wrong. You need to carry the one by adding it to the 5. So it would be 638. Note: this is exactly what you do when you multiply on paper, it’s just easier to visualize the FOIL method in your head.
