Réponse :
2) -1 + 1 = 0 -1 × 1 = -1
0 × -1 = -1 -1 + -1= -2
-1 + 1 = 0 -2 + 1 = -1
0 × 5 = 0 -1 ×5 = -5
1 + -5 = -4
3) 10 + 1 = 11 10×1 = 10
10×10 = 100 10+10 = 20
100+ 1 =101 20 + 1 = 21
101× 5 = 505 21×5 = 105
105 + 1 = 106
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Réponse :
2) -1 + 1 = 0 -1 × 1 = -1
0 × -1 = -1 -1 + -1= -2
-1 + 1 = 0 -2 + 1 = -1
0 × 5 = 0 -1 ×5 = -5
1 + -5 = -4
3) 10 + 1 = 11 10×1 = 10
10×10 = 100 10+10 = 20
100+ 1 =101 20 + 1 = 21
101× 5 = 505 21×5 = 105
105 + 1 = 106