Question

(145*99+145)-(143*101-143)

Answer 1

( 145 x 99 + 145 ) - ( 143 x 101 - 143 ) 

= ( 145 x 99 + 145 x 1 ) - ( 143 x 101 - 143 x 1 ) 

= { 145 x ( 99 + 1 ) } - { 143 x ( 101 - 1 ) }

= 145 x 100 - 143 x 100

= 100 x ( 145 - 143 ) 

= 100 x 2 

= 200

TK mk nha bn !!

Answer 2

( 145 x 99 + 145 ) - ( 143 x 101 - 143 )

= 145 x ( 99+ 1) - 143 x ( 101 - 1 )

= 145 x 100 - 143 x 100

= 14500 -14300

= 200

Answer 3

( 145 x 99 + 145 ) - ( 143 x 101 - 143 )

= ( 145 x 99 + 145 x 1 ) - ( 143 x 101 - 143 x 1 )

= { 145 x ( 99 + 1 ) } - { 143 x ( 101 - 1 ) }

= 145 x 100 - 143 x 100

= 100 x ( 145 - 143 )

= 100 x 2

= 200 

Answer 4

( 145 x 99 + 145 ) - ( 143 x 101 - 143 )

= ( 145 x 99 + 145 x 1 ) - ( 143 x 101 - 143 x 1 )

= 145 x ( 99 + 1 ) - 143 x ( 101 - 1 )

= 145 x 100 - 143 x 100

= ( 145 - 143 ) x 100

= 2 x 100

= 200

Học tốt nhé bạn !

Answer 5

  ( 145 x 99 + 145 ) - ( 143 x 101 - 143 )

= ( 145 x 99 + 145 x 1 ) - ( 143 x 101 - 143 x 1 )

= [ 145 x ( 99 + 1 ) ] - [ 143 x ( 101 - 1 ) ]

=  145 x 100  -  143 x 100 

= 100 x ( 145 x 143 )

= 100 x 2 

= 200

hok tốt

Answer 6

= 200 

ok