Let's evaluate each multiplication calculation one by one:
7577 × 2 :
To multiply, we calculate: 7577 × 2 = 15154 .
26789 × 2 :
Calculate: 26789 × 2 = 53578 .
4237 × 2 :
Calculate: 4237 × 2 = 8474 .
4641 × 2 :
Calculate: 4641 × 2 = 9282 .
25130 × 2 :
Calculate: 25130 × 2 = 50260 .
3282 × 2 :
Calculate: 3282 × 2 = 6564 .
These calculations involve multiplying each number by 2, which is a basic arithmetic operation commonly introduced at the middle school level. Multiplication by 2 is simply adding the number to itself.