Question

Calculați rapid folosind proprietățile adunării:
a)4,2+5,7+5,8+4,3;
b)4,27+3,45+5,73+6,55;
c)0,8+3,2+11,11+89,89;
d)3,725+5,49+26,275+4,51.
VA TOG AJUTATIMA URGENT!!!!​

Answer 1

Salut!

a)4,2+5,7+5,8+4,3

=9,9+5,8+4,3

=15,7+4,3

=20

b)4,27+3,45+5,73+6,55

=7,72+5,73+6,55

=13,45+6,55

=20

c)0,8+3,2+11,11+89,89

=4+11,11+89,89

=15,11+89,80

=105

d)3,725+5,49+26,275+4,51

=9.215+26,275+4,51

=35.49+4,51

=40

Sper ca te-am ajutat!