Question

Calculeaza : 3+3*[3+3:3*)3+3*3)]:15=
812-4*[6*(61-3600:12:30)]:9
[214+240:(16-2*5)]*25-25:25
90+7*[1614-12000:(18-10)]-16
44+8*[280:(37-1480:20:37)]:32-7
(18*8+56):[50*40:(220-2*60)]

Answer 1

3 + 3 x [ 3 + 3 : 3 x(3 + 3 x 3)] : 15 = 6
= 3 + 3 x ( 3 + 1 x 12) : 15 =
= 3 + 3 x 15 : 15 = 
= 3 + 45 : 15 =
= 3 + 3 =
= 6 

812 - 4 x [6 x ( 61 - 3 600 : 12 : 30 ) ] : 9 =
=812 - 4 x [ 6 x ( 61 - 300 : 30)] : 9 =
= 812 - 4 x ( 6 x 51 ): 9 =
= 812 - 4 x 306 : 9 =
= 812 - 1 224 : 9 =
= 812 - 136=
= 676

[ 214 + 240 : ( 16 - 2 x 5 ) ] x 25 - 25 : 25 = 6 349
= ( 214 + 240 : 6 ) x 25 - 1 =
= ( 214 + 40) x 25 - 1 =
= 254 x 25 - 1 =
= 6 350 - 1 =
= 6 349


90 + 7 x [ 1 614 - 12 000 : ( 18 - 10 ) ] - 16 = 872 
= 90 + 7 x ( 1 614 - 12 000 : 8 ) - 16 =
= 90 + 7 x ( 1 614 - 1 500) - 16 =
= 90 + 7 x 114 - 16 =
= 90 + 798 - 16 =
= 888 - 16 =
= 872 


44 + 8 x [ 280 : ( 37 - 1 480 : 20 : 37 ) ] : 32 - 7 = 39
= 44 + 8 x [ 280 : ( 37 - 74 : 37) ] : 32 - 7 =
= 44 + 8 x [ 280 : ( 37 - 2)] : 32 - 7 =
= 44 + 8 x ( 280 : 35 ) : 32 - 7 =
= 44 + 8 x 8 : 32 - 7 =
= 44 + 64 : 32 - 7 =
= 44 + 2 - 7 =
= 46 - 7 =
= 39 

(18 x 8 + 56 ) : [ 50 x 40 : ( 220 - 2 x 60 ) ] = 10
= ( 144 + 56 ) : [ 2 000 : ( 220 - 120) ] =
= 200 : ( 2 000 : 100) =
= 200 : 20 =
= 10