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17. Calculează: PT 60 PUNCTE!! VA ROG REPEDE!!!!! SCRIETI SI TRANSFORMARILE NUMERELOR!!!

a) 13 m + 548 cm = ... cm;



69 hm + 173 m = ... m;



59 km + 9 dam = ... dam;



b) 60 m – 468 cm = ... cm;



87 cm – 530 mm = ... mm;



15 km – 23 dam = ... dam;



c) 4500 m – 320 dam = ... dam;



7800 m – 49 hm = ... hm;



5500 m – 5 km = ... m.


Răspuns :

Răspuns:

a) 13 m + 548 cm = 1848 cm;

69 hm + 173 m = 7073 m;

59 km + 9 dam = 5909 dam;

b) 60 m – 468 cm = 2532 cm;

87 cm – 530 mm = 340 mm;

15 km – 23 dam = 1477 dam;

c) 4500 m – 320 dam = 130 dam;

7800 m – 49 hm = 29 hm;

5500 m – 5 km = 500 m.

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