CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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