31100 - (4180*3+236*8) =

(2600-2320) / 4+140*3

5110*6-99/33=

8130*5+72/24=

7150*6-70/14=

7150 * 6 - 70 / 14 = 42895

7150*6=42900

70/14=5

42900-5=42895

8130 * 5 + 72 / 24 = 40653

8130*5=40650

72/24=3

40650+3=40653

5110 * 6 - 99 / 33 = 30657

5110*6=30660

99/33=3

30660-3=30657

(2600 - 2320) / 4 + 140 * 3 = 490

2600-2320=280

280:4=70

140*3=420

70+420 = 490

31100 - (4180*3+236*8) = 16672

14180*3=12540

236*8=1888

12540+1888=14428

31100-14428=16672