Exercice 1
1 000 × 288 = 288 000
582 × 10 = 5 820
100 × 215 = 21 500
100 × 255 = 25 500
915 × 10 = 9 150
1 000 × 231 = 231 000
10 × 507 = 5 070
100 × 378 = 37 800
840 × 10 = 8 400
100 × 421 = 42 100
1 000 × 288 = 288 000
582 × 10 = 5 820
100 × 215 = 21 500
100 × 255 = 25 500
915 × 10 = 9 150
1 000 × 231 = 231 000
10 × 507 = 5 070
100 × 378 = 37 800
840 × 10 = 8 400
100 × 421 = 42 100