Find the product by suitable rearrangement. i) 25 × 1963 × 4 ii) 2

1.	Find the product by suitable rearrangement. i) 25 × 1963 × 4 ii) 20 × 255 × 50 × 6
Answer» i) 25 × 1963 × 4 = 25 × (1963 × 4) = 25 × (4 × 1963) (Commutative property) = (25 × 4) × 1963 (Associative property) = 100 × 1963 = 196300 ii) 20 × 255 × 50 × 6 = 20 × 50 × 255 × 6 (Commutative property) = (20 × 50) × (255 × 6) (Associative property) = 1000 × 1530 = 15,30,000

Find the product by suitable rearrangement. i) 25 × 1963 × 4 ii) 20 × 255 × 50 × 6

Answer»

i) 25 × 1963 × 4 = 25 × (1963 × 4)

= 25 × (4 × 1963) (Commutative property)

= (25 × 4) × 1963 (Associative property)

= 100 × 1963

= 196300

ii) 20 × 255 × 50 × 6 = 20 × 50 × 255 × 6 (Commutative property)

= (20 × 50) × (255 × 6) (Associative property)

= 1000 × 1530

= 15,30,000