Alright, let's solve this math problem step by step. First, we have the number 68. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 40. So, we're going to take the number 68 and add it to itself 40 times.
Step 1: 0 + 68 = 68
Step 2: 68 + 68 = 136
Step 3: 136 + 68 = 204
Step 4: 204 + 68 = 272
Step 5: 272 + 68 = 340
Step 6: 340 + 68 = 408
Step 7: 408 + 68 = 476
Step 8: 476 + 68 = 544
Step 9: 544 + 68 = 612
Step 10: 612 + 68 = 680
Step 11: 680 + 68 = 748
Step 12: 748 + 68 = 816
Step 13: 816 + 68 = 884
Step 14: 884 + 68 = 952
Step 15: 952 + 68 = 1020
Step 16: 1020 + 68 = 1088
Step 17: 1088 + 68 = 1156
Step 18: 1156 + 68 = 1224
Step 19: 1224 + 68 = 1292
Step 20: 1292 + 68 = 1360
Step 21: 1360 + 68 = 1428
Step 22: 1428 + 68 = 1496
Step 23: 1496 + 68 = 1564
Step 24: 1564 + 68 = 1632
Step 25: 1632 + 68 = 1700
Step 26: 1700 + 68 = 1768
Step 27: 1768 + 68 = 1836
Step 28: 1836 + 68 = 1904
Step 29: 1904 + 68 = 1972
Step 30: 1972 + 68 = 2040
Step 31: 2040 + 68 = 2108
Step 32: 2108 + 68 = 2176
Step 33: 2176 + 68 = 2244
Step 34: 2244 + 68 = 2312
Step 35: 2312 + 68 = 2380
Step 36: 2380 + 68 = 2448
Step 37: 2448 + 68 = 2516
Step 38: 2516 + 68 = 2584
Step 39: 2584 + 68 = 2652
Step 40: 2652 + 68 = 2720

So, 68*40 = 2720