Bonjour
A = 5^7
A = 78 125
B = 1,3 x 10^4 + 7^2
B = 13 000 + 49
B = 13 049
C = (0,4 x 10^5)^2/(40 x 10^4)
C = 0,16/40 x 10^(5*2-4)
C = 0,004 x 10^6
C = 4 x 10^(-3) x 10^6
C = 4 x 10^(-3+6)
C = 4 x 10^3
C = 4000
D = (2 + 10^4) x 2^3
D = (2 + 10000) x 8
D = 10002 x 8
D = 80 016
E = 2015^0/10^(-2)
E = 1 x 10^2
E = 10^2
E = 100
1) (9^3 - 15) x 10^2 + 3^4
= (729 - 15) x 100 + 81
= 714 x 100 + 81
= 71 400 + 81
= 71 481
2) 8,5 x 10^4 - 2 x 10^3
= 85 000 - 2000
= 83 000
3) (10^2)^3/10^2
= 10^(2*3-2)
= 10^(6-2)
= 10^4
= 10 000
4) 1/7^(-4)
= 7^4
= 2401
2 x 5^2 + (1 - 4)^2
= 2 x 25 + (-3)^2
= 50 + 9
= 59
5) idem que précédent : 59
Puissance de 2 : 64
...........| 1 | 2 | 3 | 4 | 5
———————————-
A........| 7 | 8 | 1 | 2 | 5
B........| 1 | 3 | 0 | 4 | 9
C.......| 4 | 0 | 0 | 0 |▪️
D.......| 8 | 0 | 0 | 1 | 6
E........| 1 | 0 | 0 |▪️| 4
