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calculati : 67.3-(56.83+2.37) si 57.4-(48.36+2.44)= ? in colonita va rog

Răspuns :

67,3-(56.83+2.37)=
67.3-59.2=8.1

57.4-(48.36+2.44)=
57.4-50.8=6.6
67,3 - ( 56,83+ 2,37)=8,1
Incepem cu paranteza...
56,83+ 2,37=59.2
67.3-59.2=8,1

 57.4-(48.36+2.44)=6.6
Paranteza....
48.36+2.44=50,8
57.4-50.8=6.6
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