CHRONO

45 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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