bonjour
A = 1/10³ + 1 000 + 1 /10 ⁵ + 10 000
A = 1/1000 + 1 000 + 1 / 100 000 + 10 000
A = 11000 . 00101
B = - 3 * - 8 - 64 * 1/81 x 9 /16
B = 24 - 64/81 * 9/16
B = 24 - 576/1 296 = 24 - 4/9 = ( 216 - 4 ) /9 = 212 /9
C = 5 ² x 2 - ( - 4 )² x ( - 3 ) ³ : 6 ² - ( 7² - 3 x 5 )
C = 50 - ( 16 x - 27 ) : 36 - ( 49 - 15 )
C = 50 + 432 / 36 - 34
C = 482/2 = 241