Question

8. [(294:7x34):2]+350x100-34x21= .9 234:9+[4000-(31+7)x15]:5-219:3= lo: 11. 400+480:4+[68:2+4x(20+12+18)]= 2. [1+(5x7-2x15)]:2x(2x8-15):[3:(1+14:7)+2]= 3. 98+8x[1004-4x(8:2x2-4:4x2)]= 4. [1+2x(6+6:3)-5]:6= (31x3+74x5-32x9)-[200:20+(1000-693)]=​

Answer 1

Răspuns:

Explicație pas cu pas:

8)

=[(42x34):2]+35.000-714

= (1.428:2)+35.000-714

= 714+35.000-714

= 35.000

-

9)

= 26+(4.000-38x15):5-73

= 26+(4.000-570):5-73

= 26+(3.430:5 )-73

= 26+686-73

= 712-73

=639

-

10)

=(93+370-288)-(10+307)

= (463-288)- 317

= 175-317

= - 142

-

11)

=880:4+(34+4x 50)

= 220+(34+200)

= 220+234

= 454

-

12)

= [ 1+(35-30):2x( 16-15):[ 3:( 1+2)+2]

=[ (1+5):2x1 :(3:3+2)

= (6:2):3

= 3:3

=1

-

13)

=98+8x [ 1.004-4 x ( 4x2-1x2)

= 98+8x [ 1004-4 x ( 8-2)

= 98+8x (1.004-4x6)

= 98+8x (1.000-24)

= 98+8x 976

= 98+7.808

= 7.906

-

14)

=[ 1+2x ( 6+2)-5]:6

= (1+2x8-5):6

= (1+16-5):6

= (17-5):6

= 12:6

=2

Answer 2

Răspuns:

rezolvarea este in imagine

Succes!