cm

1. Calcul mental
N°19
“Changer de format de durée”

2. Diapositive 1Diapositive 1
0,8 h

4. Diapositive 2Diapositive 2
2,5 h

6. Diapositive 3Diapositive 3
3,25 h

8. Diapositive 4Diapositive 4
6,75 h

10. Diapositive 5Diapositive 5
2,3 h

11. FIN

12. CORRECTION

13. Diapositive 1Diapositive 1
= = ×
= × ÷
= × =
8 1
0,8h h 8 h
10 10
8 60min 10
8 6min 48min

14. Diapositive 2Diapositive 2
= +
= +
=
2,5h 2h 0,5h
2h 30min
2h30

15. Diapositive 3Diapositive 3
= +
= +
=
3,25h 3h 0,25h
3h 15min
3h15

16. Diapositive 4Diapositive 4
= +
= +
=
6,75h 6h 0,75h
6h 45min
6h45

17. Diapositive 5Diapositive 5
= +
= + ×
= + ×
=
2,3h 2h 0,3h
1
2h 3 h
10
2h 3 6min
2h18