Question

8 . Calculati , respectand regulile invatate .
a) [ 267 + 117 × 9 - ( 832 : 2 - 531 : 9 )]×10 = 
b) 30 + 4 × [ 36 : 9 + 3 × ( 20 + 8 × 42 : 2 ] =
c) [ 2.100 : ( 225 - 500 : 4 ) + ( 84 : 2 × 0 )] ×100 : 10 : 10 = 
d) 9 × ( 101 × 1 +111 : 1 ) - [85 - 7 × ( 36 : 9 + 63 : 9 )] =
e) 3 + 6 × [ 30 + 6 × ( 3  + 5 × 6 ) - 28]-3=
f) 2 + 2 × [ 2 + 3 × ( 2 + 202 : 2 - 306 : 3 )] =

VA ROGG!! MULTUMESC!!

Answer 1

a) = (267 + 117 x 9 - 357 ) x 10 = ( 267 + 1053 - 357 ) x 10 = 963 x 10 = 9630
b) = 30 + 4 x ( 36 : 9 + 3 x 188 ) = 30 + 4 x ( 4 + 564 ) = 30 + 4 x 568 = 30 + 2272 = 2302
c) = ( 2100 : 100 + 0 ) x 100 : 10 : 10 = 21 x 100 : 10 : 10 = 21
d) = 9 x ( 101 + 111 ) - ( 85 - 7 x 11 ) = 9 x 212 - ( 85 - 77 ) = 1908 - 8 = 1900
e) = 3 + 6 x ( 30 + 6 x 33 - 28 ) -3 = 3 + 6 x ( 30 + 198 - 28 ) - 3 = 3 + 6 x 200 - 3 = 3 + 1200 - 3 = 1200
f) = 2 + 2 x ( 2 + 3 x 1 ) = 2 + 2 x 5 = 2 + 10 = 12