35 Calculer mentalement : 7+9 5-3 A = C = 1+ 12+15 3 B = D= 14 2 4 8 23-5 2 1 2
Mathématiques
Zidat
Question
35 Calculer mentalement :
7+9
5-3
A =
C = 1+
12+15
3
B =
D=
14
2
4
8
23-5
2
1
2
7+9
5-3
A =
C = 1+
12+15
3
B =
D=
14
2
4
8
23-5
2
1
2