SOLUTION

 

Calculer sans poser.

 

6 x 10 = 60

8 x 100 = 800

7 x 10 = 70

9 x 100 = 900

3 x 10 = 30

2 x 100 = 200

5 x 1000 = 5000

3 x 100 = 300

8 x 1000 = 8000

1 x 10 = 10

10 x 100 = 1000

70 x 10 = 700

20 x 100 = 2000

60 x 10 = 600

100 x 100 = 10000

30 x 100 = 3000

50 x 1000 = 50000

30 x 100 = 3000

90 x 1000 = 90000

0 x 100 = 0

 

32 x 100 = 3200

76 x 1000 = 76000

28 x 10 = 280

64 x 1000 = 64000

106 x 1000 = 106000

380 x 100 = 38000

540 x 100 = 54000

392 x 1000 = 392000

874 x 10 = 8740

560 x 1000 = 560000

 

3 x 100 = 300

5 x 10 = 50

8 x 100  = 800

9 x 1000 = 9000

2 x 10  = 20

23 x 100 = 2300

86 x 10 = 860

12 x 1000  = 12000

458 x 10  = 4580

1030 x 10 = 10300

 

43 x 10 = 430

15 x 100 = 1500

25 x 10  = 250

867 x 100 = 86700

40 x 1000 = 400000

75 x 100 = 7500

54 x 1000 = 54000

821 x 100  = 82100

10 x 10  = 100

1x 1000 = 1000

 

32 x 1000 = 32000

63 x 10000 = 630000

7100 x 10  = 71000

30 x 100 = 3000

4030 x 10 = 40300

600 x 1000 = 600000

100 x 10 = 1000

250 x 1000  = 250000

87400 x 100 = 8740000

56040 x 10 = 560400