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Leahacristina
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Matematica.
1.Afla catul impartirilor si fa proba prin operatia inversa.
438:6=.......
.....????
465:3=.......
......????
576:8=........?.....?????
774:6=......?.......?????
144:4=.......?........?????
522:9=......?.........????
2. Se dau numerele a=528;b=366;c=2.AFLA:
a:c=?
b:c=?
(a+b) :c=?
(a-b):c=?

Răspuns :

Mario1554
1) 438:6= 72
72×6=438
2) 465:3=121 rest 2
121×3=363+2=365
3)576:8=72
72×8=576 4) 774:6=129 129×6=774
Cristinabranzan13
2)
 a:c=528:2=264
b:c=366:2=183
(a+b):c=(528+366):2=894:2=447
(a-b):2=(528-366):2=162:2=81

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