CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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