Question

Find 18 x 45 using distributive property

Answer 1

Answer:

18 × 45

= (20-2) × 45

= 20 × 45 - 2 × 45 (distributive property)

= 900 - 90

= 810

Answer 2

Answer:

810

Step-by-step explanation:

18 x 45

= ( 10 + 8 ) x (40 + 5)

= [( 10 + 8 ) x 40] + [( 10 + 8 ) x 5]

= ( 10 x 40 ) + ( 8 x 40 ) + ( 10 x 5 ) + ( 8 x 5 )

= 400 + 320 + 50 + 40

= 810