CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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