OK, let's work through this together. We're starting with 299 and we're going to multiply it by 10, which means we add 299 to itself 10 times.
Step 1: 0 + 299 = 299
Step 2: 299 + 299 = 598
Step 3: 598 + 299 = 897
Step 4: 897 + 299 = 1196
Step 5: 1196 + 299 = 1495
Step 6: 1495 + 299 = 1794
Step 7: 1794 + 299 = 2093
Step 8: 2093 + 299 = 2392
Step 9: 2392 + 299 = 2691
Step 10: 2691 + 299 = 2990

So, 299*10 = 2990