CHRONO

45 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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