(39000 + 5300 * 400) / 100 = 21590
1) 5300 * 400 = 2120000
2) 2120000 + 39000 = 2159000
3) 2159000 / 100 = 21590
5400-840*300:10= -19800
1) 840 * 300 = 252000
2) 252000 / 10 = 25200
3) 5400 - 25200 = -19800
5264:7*30 = 22560
1) 5264 / 7 = 752
2) 752 * 30 = 22560
4384 / 8 * 50 = 27400
1) 4384 / 8 = 548
2) 548 * 50 = 27400