Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Select the best answers.
(5 + 8) x (4 + 3) =
(7 + 3) x (8 + 2) =
(10 + 5) x (1 + 10) =
(2 + 2) x (8 + 6) =
(1 + 5) x (1 + 8) =