Question

50 +20 - 50

ai tik mik mik tik lại

Answer 1

50 + 20 - 50

= (50 - 50) + 20

=  0 + 20

=  20

Answer 2

50 +20 -50

= ( 50 -50 ) + 20

=    0 +20

=20

Answer 3

50+20-50=20          

k cho tôi cho 50 nghìn

Answer 4

50 + 20 - 50

= 70 - 50 

= 20

k mk đi

Answer 5

50 + 20 - 50

= 70 - 50

= 20

k nha