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a fost răspuns

Calculeaza (in grame):
239 g+ 103 g=________
500 g+ 5 g=________
30 g+ 100 g=________
5 g + 17 g+ 100 g=_______
3 g + 10 g+ 110 g=_______
7 g + 3 g+ 239 g=_______
843 g- 239 g -436 g =______
159 g- 17 g- 18 g=______
435 g- 149 g- 200 g=______