CHRONO

38 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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