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Asociaza termenii ce formeaza o zece, apoi calculeaza.
9+1+4 5+5+2. 7+3+3
5+2+8. 1+7+9. 6+6+4


Răspuns :

[tex]9 + 1 + 4 = 10 + 4 = 14 [/tex]

[tex]7 + 3 + 3 = 10 + 3 = 13[/tex]

[tex]5 + 2 + 8 = 7 + 8 = 15[/tex]

[tex]1 + 7 + 9 = 8 + 9 = 17[/tex]

[tex]6 + 6 + 4 = 12 + 4 = 16[/tex]