Question

[one hundred x seventy_eight - one hundred x nine - sixty_nine x hundred =................................................................

Answer 1

one hundred x seventy_eight - one hundred x nine - sixty_nine x one hundred 

= one hundred x (seventy_eight -  nine - sixty_nine)

=one hundred x zero

= zero

Answer 2

100*78-100*9-69*100

=100*(78-9-69)

=100*0=0

Answer 3

mình tính nhầm , kết quả đúng là bằng 0