Question

4. Calculati:
a) 5.72 - 32. {22. 33 - 2. [23.32 - 5. (34 - 52.3)]}:
b) 32 +22.5. {52 +23. [3.22 + (22.52 - 2013:
c) 360: {3.22 +2·[3.2² + (12+3.4²): 2?]} +60;
d) 360 : {2} + 2 [2.32 + (14+2.52): 2] + 40.​

Answer 1

Răspuns:

a) 5•49-9•{4•27-2•[8•9-5•(81-25•3)]}

245-9•{108-2•[72-5•(81-75)]}

245-9•[108-2•(72-5•6)]

245-9•[108-2•(72-30)

245-9•(108-2•42)

245-9•(108-84)

245-9•24

245-216

29

b) 9+4•5•{25+8•[3•4+(4•25-64)]}

9+20•{25+8•[12+(100-64)]}

9+20•[25+8•(12+36)]

9+20•(25+8•48)

9+20•(25+384)

9+20•409

9+8180

8189

c) 360:{3•4+2•[3•8+(12+3•16):4]}+60

360:{12+2•[24+(12+48):4]}+60

360:[12+2•(24+60:4)]+60

360:[12+2•(24+15)]+60

360:(12+2•39)+60

360:(12+78)+60

360:90+60

4+60

64

d) 360:{8+2•[2•9+(14+2•25):8]}+40

360:{8+2•[18+(14+50):8]}+40

360:[8+2•(18+64):8]+40

360:(8+2•82:8)+40

360:(8+164:8)+40

360:(8+20,5)+40

360:28,5+40

12,63+40

52,63

Sper că te-am ajutat! :)