Question

Find the solution using suitable properties - 75 x 9

Answer 1

Answer:

Hey mate here is your answer.

( a ) 7 * ( 50 - 2 )

= 7 * 50 - 7 * 2

= 350 - 14

= 336

( b ) ( - 17 ) ( - 29 )

= ( - 17 ) (( - 20 ) + (-9))

= ( - 17 * -20 ) + ( -9 * -17 )

= 340 + 153

= 493

( c ) ( - 57 ) ( - 19 ) + 57

= -57 ( - 19 - 1 )

= - 57 ( - 20 )

= 1140

Answer 2

Answer:

Hello ! It's 675.

Step-by-step explanation:

    75×9

⇒ (70+5)(5+4)

= 70(5+4) + 5(5+4)

= 70(9) + 5(9)

= 630+45

= 675

Hope, it will help you......