2x 718 x 5 = 2 x 5 x 718 = 10 x 718 = 7180

ա)20 x 324 x 50 = 20 x 50 x 324 = 1000 x 324 = 32400

բ) 80 x 60 x 50 = 50 x 60 x 80 = 3000 x 80 = 240000

գ) 30 x 24 x 50 x 20 = 50 x 30 x 24 x 20 = 1500 x 480 = 720000

դ) a = 80 , b = 50

ա) 20 x a x 70 x b = 20 x a x 70 x b = 1600 x 70 x b = 3500 x 1600 = 5600000

450 x 32 — 526 + (9324 — 872) : 2 = 8452