Without delay, let's solve this. We've got 145 and we will be multiplying it by 5, that is, adding 145 to itself 5 times.
Step 1: 0 + 145 = 145
Step 2: 145 + 145 = 290
Step 3: 290 + 145 = 435
Step 4: 435 + 145 = 580
Step 5: 580 + 145 = 725

So, 145*5 = 725