Let's roll up our sleeves and solve this. We have 740 and we're going to multiply it by 3, essentially adding 740 to itself 3 times.
Step 1: 0 + 740 = 740
Step 2: 740 + 740 = 1480
Step 3: 1480 + 740 = 2220

So, 740*3 = 2220