Efectuati calculele di completati spatiile libere
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a)
[tex]4 \times ( - 5) = - 25 \\ [/tex]
b)
[tex]( - 13) \times ( + 2) = - 26[/tex]
c)
[tex]( - 16) \times ( - 3) = - 48[/tex]
d) e 0
e)
[tex]417 \times ( - 1) = - 417[/tex]
f)
[tex]4 \times ( + 5) = + 20[/tex]
g)
[tex]( - 100) \times ( - 5) = - 500[/tex]
h)
[tex]4 \times 20 = 80[/tex]
i)
[tex]( +8) \times ( - 10) \times ( - 2) = - 20 [/tex]
sper ca te am ajutat ^~^
Semnul € inseamna apartine
a) 4•(-5)nu € N
b) (-13)•2 € Z
c) (-16)•(-3)€ N
d)0•(-20)€ N
e) 417•(-1)€ Z
f) 4•5€ N
g) (-100)•(-5)€ Z
h)4•20€ Z
i)8•(-10)•(-2)€ N