Question

помогите пожалуйста решить​

Answer 1

13 • 3 = 39

12 • 4 = 48

(5 + 2) • 60 = 7 • 60 = 420

(14 + 6) • 2 = 20 • 2 = 40

13 • 30 = 390

14 • 20 = 280

(40 + 20) • 2 = 60 • 2 = 120

(22 + 8) • 3 = 30 • 3 = 90

12 • 40 = 480

21 • 40 = 840

(20 + 4) • 2 = 24 • 2 = 48

(31 + 19) • 20 = 50 • 20 = 1000

130 • 2 = 260

410 • 2 = 820