Question

find the value of the following by using suitable property:(a)370*1587-37*10*587
(b)1195*5*763+239*25*237
plz answer quickly for 5 points

Answer 1

hope this will help you

Answer 2

Answer:

a). 370 × 1587 - 37 × 10 × 587

First we use associative property in 37 and 10

= 370 × 1587 - ( 37 × 10 ) × 587

= 370 × 1587 - ( 370 ) × 587

= 370 × 1587 -  370 × 587

Now we use Reverse of Distributive property by taking 370 common

= 370 × ( 1587 - 587 )

= 370 × 1000

= 370000

b). 1195 × 5 × 763 + 239 × 25 × 237

First we use associative property in 1195 and 5 , 239 and 25

= ( 1195 × 5 ) × 763 + ( 239 × 25 ) × 237

=  ( 5975 ) × 763 + ( 5975 ) × 237

=  5975 × 763 + 5975 × 237

Again we use Reverse of Distributive property by taking 5975 common

=  5975 × ( 763 + 237 )

= 5975 × ( 1000 )

= 5975000