Calculer
-
74 × 7-4
74 × 7-4 = 74 - 4 = 70 = 1
-
143 + 147
143 + 147, on ne peut rien faire avec un signe +.
-
(-3)4 × (-3)-8
(-3)4 × (-3)-8 = (-3)4 - 8 = (-3)-4 = (-1/3)4
-
[(-5)2]-6
[(-5)2]-6 = (-5)2 × (-6) = (-5)-12 = (-1/5)12
-
(5/6)13
(5/6)13 = (513)/(613)
-
(3 × 4)-6
(3 × 4)-6 = 12-6 = 1/(126)
-
(-8x)4
-
34 × 1/32
34 × 1/(32 = 34 × 3-2 = 34 - 2 = 32
-
105 × 10-6
105 × 10-6 = 105 - 6 = 10-1 = 1/10