Question

50 elevens-1 elevens

Answer 1

( 50 -1 ) elevens = 49 elevens = 49 x 11 = 539

or

50 elevens - 1 elevens = (50 x 11) - (1 x 11)

550 - 11 = 539

Answer 2

Explanation:

50 elevens-1 elevens = ( 50 -1 ) elevens = 49 elevens

or 49 x eleven = 49 x 11 = _______ (use your calculator here)