Matematică, întrebare adresată de alealessia7, 8 ani în urmă

* {[(2 x 8 x 5 - 2 x 15) - 25 ] : 5+ [(5 x 20:10 - 4x5:2)] : 5} x 3 =
9 + {9 + 9 x [9 + 9 x (9-9:3)]} =
4 + 3x 8 + {[(3 x 8 - 6) + 2 x 3]: 4 + 6) =
1 + {2 x [3 + (14 +16): 5] - 54:9} x 63:7 =
7 + [25 x 4:10 + 5 x (36 - 2 x 15)] : 8 =
36 + {24 : 3 + 5 x [40 + 6 x (32:8 - 24 x 0 : 1)]} =
20 x {[(4 x 32 + 3 x 4): 10] : 2 + 48:8} = va roooooooooooooooooog repedeeeeeeeeeeee dau multe puncte si coroana e urgeeeeeeeeeeeeeeent repedeeeeeeeeeee​

Răspunsuri la întrebare

Răspuns de Carinacrina
8
A) {[(80-30)-25]:5+[(100:10-20:2)]:5}•3
={[(50-25):5+(10-10)]:5}•3
=[(25:5+0):5•3
=(5:5)•3=1•3=3
B) 9+{9+9•[9+9•(9-9:3)]}
=9+{9+9•[9+9•(9-3)]}
=9+[9+9•(9+9•6)]
=9+(9+9•63)
=9+(9+567)=9+576=585
C) 4+3•8+{[(3•8-6)+2•3]:4+6}
=4+24+[(18+6):4+6]
=4+24+(24:4+6)
=4+24+12=40
D) 1+{2•[3+(14+16):5]-54:9}•63:7
=1+[2•(3+30:5)-6]•9
=1+(2•9-6)•9
=1+12•9=1+108=109
E)7+[25•4:10+5•(36-2•15)]:8
= 7+100:10+5•(36-30)]:8
=7+(10+5•6):8
=7+40:8=7+5=12
F) 36+{24:3+5•[40+6•(32:8-24•0:1)]}
=36+{8+5•[40+6•(4-0:1)]}
=36+[8+5•(40+6•4)]
=36+(8+5•64)
=36+(8+320)=36+328=364
G) 20•{[(4•32+3•4):10]:2+48:8}
=20•{[(128+12):10]:2+6}
= 20•[(140:10):2+6]
=20•(14:2+6)
=20•(7+6)=20•13=260
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