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Ajutatima la ex 3,4,5,7 pagina 31

Ajutatima La Ex 3457 Pagina 31 class=

Răspuns :

[tex]3. \\ 8 \times 9 \times 7 \times 5 = 72 \times 35 = 2520[/tex]
4. 16:2=8
8:2=4
160:2=80
80:2=40
1600:2=800
800:2=400
400:2=200
5. a)60-30=30
b)6-3-0=3-0=3
c)6x3=18
d)6x3x0=18x0=0
7. 3, 1, 10, 3, 1, 10, 3, 1, 10, 3