a) 216 × 5 × 2 = …………………

= ………………….

= ………………….

c) 5 × 19 × 2 = ………………….

= ………………….

= ………………….

b) 4 × 76 × 25 = ………………….

= ………………….

= ………………….

d) 125 × 23 × 8 = ………………….

= ………………….

= ………………….

a) 216 × 5 × 2 = 216 × (5 × 2)

= 216 × 10

= 2 160

b) 4 × 76 × 25 = (4 × 25) × 76

= 100 × 76

= 7 600

c) 5 × 19 × 2 = (5 × 2) × 19

= 10 × 19

= 190

d) 125 × 23 × 8 = (125 × 8) × 23

= 1 000 × 23

= 23 000