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a fost răspuns

Calculeaza respectand regulile invatate.
(9-9)x9+3x3x3
89-35:(5+2)+43
(45+2-34):(56:8-1)
7x4+(87-79)x(36:4)

Răspuns :

Bbombonica25
Deci : (9-9)x9+3x3x3 = 0x9+3x3x3=0+9x3 =0+27=27 
89-35:(5+2)+43=89-35:7+43= 89-5+43=84+43=127
(45+2-34):(56:8-1)=(47-34) : (7-1)= 13:6=2,1(6) 
7x4+(87-79)x(36:4) = 28+8x9 = 28+72=100 
Guss
(9-9)×9+3×3×3= . 0×9+9×3= . 0+27=27...... ..... 89-35:(5+2)+43=89-35:7+43=89-5+43=127 .... ..... (45+2-34):(56:8-1)=(47-34):(7-1)=13:6=2rest 1 ... .... 7×4+(87-79)×(36:4)=28+8×9=28+72=100

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