CHRONO

10 s.

Calculer des expressions comportant des parenthèses.

CHRONO

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