The document presents 5 math problems involving multiplication of negative numbers. Each problem shows a calculation with two negative numbers, such as -8 x 5 or -7 x -6. The next slide provides the correct answer for each problem, with the final results being -40, 42, -40, 590, and -55 respectively. It demonstrates how to calculate expressions involving negative numbers.

1. Calcul mental
“Les nombres relatifs”
Série n°2

2. Diapositive 1
5 x (-8)

4. Diapositive 2
-6 x (-7)

6. Diapositive 3
-2 x (-5) x (-4)

8. Diapositive 4
- 59 x (-10)

10. Diapositive 5
-11 x 5

12. CORRECTION

13. FIN

14. Diapositive 1
5 x (-8) =- 40

15. Diapositive 2
-6 x (-7) = 42

16. Diapositive 3
-2 x (-5) x (-4)
= -40

17. Diapositive 4
- 59 x (-10)
= 590

18. Diapositive 5
-11 x 5
= -55