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Rezolva urmatoarele exercitii:
2+6+9-10+ 7=...........
13-8+61-40=...............
2*3*3:6=....................
27:3*7+15:5*4=...........
[7*8-6]:5=..................
[7*7-35]:2=.................
250-[13+6*9]=..............
[15+18:9+23]:10=...............
100-4*8+16:2=....................
1*1+1-1:1+1=........................
[1*1+1:1+1]:1*1=....................
[22-19]*[11-7]=.............
[20:10]*[24:4]=..............
[64+8]:9+38=...............
12:2+24:3+2*4*7-9*2:3=.................
[5*5-14:2]:[45:5-21:3]=..............


Răspuns :

2+6+9-10+17=8+9-27=17-27=10
La prima 17,La a doua 26,La a treia 3,La a patra 75,la a cincea 10,la a sasea 7,la a saptea  186,la a opta 4,la a noua 60,la a zecea 2,la cealalta 12,la urmatoarea 12,la urmatoarea 42,la urmatoarea 64,iar la ultima 9