Question

find using distributive property
a) 824*25
b)504*102




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Answer 1

a)

824 × 25

= ( 820 + 4 ) × 25

= ( 820 × 25 ) + ( 4 × 25 )

= ( 20500 ) + ( 100 )

= 20600

b)

504 × 102

= ( 500 + 4 ) × ( 100 + 2 )

= 500 × ( 100 + 2 ) + 4 ( 100 + 2 )

= 50000 + 1000 + 400 + 8

= 51408