Question

ma ajuta cineva cu ex 5 6 si 7 va roog ??

Answer 1

5.
a)785+115+37 ×(15+23×12)=
=900+37×(15+276)
=900+37×291
=900+10.767
=11.667

b)624-120+2025:(226-17×13)=
=504+2025:(226-221)
=504+2025:5
=504+405
=909

c)145+47 ×[215×110-83×(405-18×16)]=
=192×[23.650-83×(405-288)]
=192×(23.650-83×117)
=192×(23.650-9.711)
=192×13.939
=2.676.288

d)
512-287+10×{15+2×3+[105:15+(120-5×19)×10]×2}
=225+10×{21+[7+(120-95)×10]×2}
=225+10×[21+(7+25×10)×2]
=225+10×(21+257×2)
=225+10×(21+514)
=225+10×535
=225+5350
=5575

e)43.648:64-15×[207-(202-1080:90)]
=682-15×[207-(202-12)]
=682-15×(207-190)
=682-15×17
=682-255
=427

f)63.450:45+108×21-(105:15+17)×25
=1410+2268-(7+17)×25
=3678-24×25
=3678-600
=3078

g){123×15+10×[47+10(407+2405:65)]-2385}×10
={1845+10×[50 (407+37)]-2385}×10
=[1845+10×(50×444)-2385]×10
=(1845+10×22.200-2385)×10
=(1845+222.000-2385)×10
=(223.845-2385)×10
=221.460×10
=2.214.600

h)210-13×12+105×11-(31+84:14):37
=210-156+1155-36:37
=54+1155-0,97
=1209-0,97
=1208,03

Scuze !Doar atât am putut face ,îmi ia foarte mult din timp să le rezolv pe toate.

Answer 2

785+115+37*(15+23*12)=
937*456=
427272
624-120+2025:(226-17*13)=
504+2529:2717=
504+0,93=
504,93
145+47*[251*110-83*(405-18*16)]=
145+47*(251*110-83*5340)=
145+47*(25100-443220)=
145+47*418120=
19651785