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Ana555029
a fost răspuns

Minitest

1.Calculati :

a) 2,4×4,2-3,2:4/5

b)4,5+31/10×2,6

c) 34,5+9,11-9,2:6,4+3,1 (6)​


Răspuns :

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Răspuns:

a) 2,4×4,2-3,2:4/5

=10,08-0,8÷5

=10,08-0,16

=9,92

b)4,5+31/10×2,6

=4,5+3,1×2,6

=4,5+8,06

=12,56

c) 34,5+9,11-9,2:6,4+3,1

=34,5+9,11-92:64+3,1

=34,5+9,11-1,4375+3,1

=43,61-1,4375+3,1

=42,1725+3,1

=45,2725