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Ex1 calculer:
a) 2 x 3 x 4 = ........
b)-2 x 3 x 4 =
c) 2 x 3 x (-4) =......
d) -2 x 3 x(-4)= .....
e) -4 (-2) × (-3) =.....
f)-4x (-2) × (-3) × (-1) = ..........
g) -2 * (-3) (-4) x 10 =......
h) -2 x 100 x (-3) × (-4) × (-1) =.......
i) -2 x 10x 10 (-3) x 4 x (-1) x 10 = .........


Ex2 calculer astucieusement, détailler:
a) -2 x 19 x (-10) x 1x(-5)
b) -9 (-20) « (-7) (-5)
C) -7x4 (-3) × (-25) x 0,1 (-1)
SVP c’est pas trop mon truc les maths (version 4ème )

Ex1 Calculer A 2 X 3 X 4 B2 X 3 X 4 C 2 X 3 X 4 D 2 X 3 X4 E 4 2 3 F4x 2 3 1 G 2 3 4 X 10 H 2 X 100 X 3 4 1 I 2 X 10x 10 3 X 4 X 1 X 10 Ex2 Calculer Astucieusem class=

Sagot :

Réponse:

Exercice 1

a 24

b -24

c -24

d 24

e -24

f 24

g -240

h 2400

i -24000

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