Alright, let's solve this math problem step by step. First, we have the number 75. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 80. So, we're going to take the number 75 and add it to itself 80 times.
Step 1: 0 + 75 = 75
Step 2: 75 + 75 = 150
Step 3: 150 + 75 = 225
Step 4: 225 + 75 = 300
Step 5: 300 + 75 = 375
Step 6: 375 + 75 = 450
Step 7: 450 + 75 = 525
Step 8: 525 + 75 = 600
Step 9: 600 + 75 = 675
Step 10: 675 + 75 = 750
Step 11: 750 + 75 = 825
Step 12: 825 + 75 = 900
Step 13: 900 + 75 = 975
Step 14: 975 + 75 = 1050
Step 15: 1050 + 75 = 1125
Step 16: 1125 + 75 = 1200
Step 17: 1200 + 75 = 1275
Step 18: 1275 + 75 = 1350
Step 19: 1350 + 75 = 1425
Step 20: 1425 + 75 = 1500
Step 21: 1500 + 75 = 1575
Step 22: 1575 + 75 = 1650
Step 23: 1650 + 75 = 1725
Step 24: 1725 + 75 = 1800
Step 25: 1800 + 75 = 1875
Step 26: 1875 + 75 = 1950
Step 27: 1950 + 75 = 2025
Step 28: 2025 + 75 = 2100
Step 29: 2100 + 75 = 2175
Step 30: 2175 + 75 = 2250
Step 31: 2250 + 75 = 2325
Step 32: 2325 + 75 = 2400
Step 33: 2400 + 75 = 2475
Step 34: 2475 + 75 = 2550
Step 35: 2550 + 75 = 2625
Step 36: 2625 + 75 = 2700
Step 37: 2700 + 75 = 2775
Step 38: 2775 + 75 = 2850
Step 39: 2850 + 75 = 2925
Step 40: 2925 + 75 = 3000
Step 41: 3000 + 75 = 3075
Step 42: 3075 + 75 = 3150
Step 43: 3150 + 75 = 3225
Step 44: 3225 + 75 = 3300
Step 45: 3300 + 75 = 3375
Step 46: 3375 + 75 = 3450
Step 47: 3450 + 75 = 3525
Step 48: 3525 + 75 = 3600
Step 49: 3600 + 75 = 3675
Step 50: 3675 + 75 = 3750
Step 51: 3750 + 75 = 3825
Step 52: 3825 + 75 = 3900
Step 53: 3900 + 75 = 3975
Step 54: 3975 + 75 = 4050
Step 55: 4050 + 75 = 4125
Step 56: 4125 + 75 = 4200
Step 57: 4200 + 75 = 4275
Step 58: 4275 + 75 = 4350
Step 59: 4350 + 75 = 4425
Step 60: 4425 + 75 = 4500
Step 61: 4500 + 75 = 4575
Step 62: 4575 + 75 = 4650
Step 63: 4650 + 75 = 4725
Step 64: 4725 + 75 = 4800
Step 65: 4800 + 75 = 4875
Step 66: 4875 + 75 = 4950
Step 67: 4950 + 75 = 5025
Step 68: 5025 + 75 = 5100
Step 69: 5100 + 75 = 5175
Step 70: 5175 + 75 = 5250
Step 71: 5250 + 75 = 5325
Step 72: 5325 + 75 = 5400
Step 73: 5400 + 75 = 5475
Step 74: 5475 + 75 = 5550
Step 75: 5550 + 75 = 5625
Step 76: 5625 + 75 = 5700
Step 77: 5700 + 75 = 5775
Step 78: 5775 + 75 = 5850
Step 79: 5850 + 75 = 5925
Step 80: 5925 + 75 = 6000

So, 75*80 = 6000