Question

2. Calculați ! E URGENT OFER 99 de PUNCTE și COROANA!
a)9-8+7×[6×5-4×(3+2)-]:9
b)98-2×{72-4×[48-6×(21:7+36:12)]}
c)121-21×5+366:[270-37×(256:128+576:144)]
d)1510-5×(9600:30-15×54:9)+630

Answer 1

a) 9-8+7•(30-4•5):9=9-8+7•10=1+70=71
b) 98-2•{72-4•[48-6•(3+3)]}=98-2•[72-4•(48-36)]=98-2•(72-4•12)=98-2•(72-48)=98-2•24=98-48=40
c) Prima poza
d) a doua poza

Answer 2

b)98-2×{72-4×[48-6×(21:7+36:12)]}=

=98-2×{72-4×[48-6×(3+3)]}

=98-2×[72-4×(48-6×6)]

=98-2×[72-4×(48-36)]

=98-2×(72-4×12)

=98-2×(72×48)

=98-2×3456

=98-6912

= -6814

c)121-21×5+366:[270-37×(256:128+576:144)]=

=121-21×5+366:[270-37×(2+4)]

=121-21×5+366:(270+37×6)

=121+21×5+366:(270×222)

=121+21×5+366:59940

=121+21×5+0,006106106106106

=142×5,106106106106

=710,8670670670670

d)1510-5×(9600:30+15×54:9)+630=

=1510-5×(320+810:9)+630

=1510-5×(320+90)+630

=1510-5×410+630

=1510-2050+630

= -540+630

=90

Te rog da-mi inimă și 5 stele