CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

0 s.
(5 - 3) x 1 =
(5 - 2) x 7 =
(6 - 3) x 7 =
7 + (9 x 6) =
6 - (3 + 2) =
(3 x 4) - 4 =
(4 x 7) + 8 =
8 - (7 - 4) =
(7 - 1) - 3 =
(3 + 5) x 8 =
(7 + 6) - 2 =
(9 x 3) + 6 =
(4 + 9) - 2 =
5 x (1 + 2) =
(2 x 5) - 3 =
(9 x 7) - 8 =
(2 x 6) + 8 =
2 + (8 x 2) =
9 + (4 x 1) =
5 + (8 x 6) =