5 V
S
1.
14
Cha
rédéri
ne
ne
X Exercice 2
Effectue les calculs suivants.
A =
B =
C =
D =
E =
F =
G =
H =
1 =
(-12) + (-15) = ()
(-20) + (+18) = ()
(+21) + (-21) = ()
(+10) + (-13) = ()
(-3) + (+16)
= (...)
= (...)
(+13) + (+7)
(-2,3)+(+0,5)
= (.....)
(-0,48) + (+2,43)
=(. )
(-3,87) + (-1,93) = (.....)
Exercice 3 Complète les carrés magiques ci-
I
B = (-
B = (
C = (+
C = (
Exerci
A
A=...
B
B=...
C
C=