Question

9) Calculează: a) 1210-3x [532 + 14 x (218-56):4+164:4x (19-5)+2]:5 b) 265 999-[956 x 38-13x (175+ 142 x 15) +144: (20+16:4)] c) 35+65 x [32+8x (73-5x 14)-195:5:3+121:5 URGENT!!!​

Answer 1

Explicație pas cu pas:

a) 1210-3x [532 + 14 x (218-56):4+164:4x (19-5)+2]:5=

1210-3x(532+14x162:4+164:4x14+2):5=

1210-3x(532+2268:4+41x14+2):5=

1210-3x(532+567+574+2):5=

1210-3x1675:5=

1210-5025:5=

1210-1005=

205

b) 265 999-[956 x 38-13x (175+ 142 x 15) +144: (20+16:4)] =

265999-[36328x(175+2130)+144:(20+4)]=

265999-(36328x2305+144:24)=

265999-(83736040+6)=

265999-83736046=

(aici cred că trebuie verificat daca e greșit vreun semn sau vreo cifra in transcrierea exercitiului)

c) 35+65 x [32+8x (73-5x 14)-195:5:3+121:5]= (cumva e 120, nu 121?)

35+65x[32+8x(73-70)-39:3+24]=

35+65x(32+8x3-13+24)=

25+65x(32+24-13+24)=

25+65x67=

25+1603=

1628