(39000+530*400):100=? 54000-840*300:100=? 5264:7*30=? 4384:8*50=?

Question

(39000+530*400):100=? 54000-840*300:100=? 5264:7*30=? 4384:8*50=?

Answer 1

(39000+530*400):100=(39000+212000):100=251000:100=2510

54000-840*300:100=54000-252000:100=54000-2520=51480

5264:7*30=752*30=22560

4384:8*50=548*50=27400