Bonjour pouvez vous maider en math svp merci de votre aide

Réponse :

Bonjour

Explications étape par étape

B) 450 × 10^6 = 4.5 × 10^2 × 10^6 = 4.5 × 10^8

c) 0.000 67 × 10^-5 = 6.7 × 10^-4 × 10^-5 = 6.7 × 10^-9

d) 6 300 × 10^12 = 6.3 × 10^3 × 10^12 = 6.3 × 10^15

e) 0.012 500 ×10^-14 = 1.25 × 10^-2 × 10^-14 = 1.25 × 10^-16

f) 0.012 500 × 10^-12 = 1.25 × 10^-2 × 10^-12 = 1.25 × 10^-14

g) 0.012 500 × 10^15 = 1.25 × 10^-2 × 10^15 = 1.25 × 10^13

h) 81 500 000 × 10^23 = 8.1 × 10^7 × 10^23 = 8.1 × 10^30

I) 81 500 000 × 10^13 = 8.1 × 10^7 × 10^13 = 8.1 × 10^20

j) 81 500 000 × 10^-34 = 8.1 × 10^7 × 10^-34 = 8.1 × 10^-27

bonjour

b . 450 x 10 ⁶ = 4.5 x 10 ² x 10 ⁶ = 4.5 x 10 ⁸

c. 0.000 67 x 10 ⁻⁵ = 6.7 x 10 ⁻⁴ x 10 ⁻⁵ = 6.7 x 10 ⁻⁹

d. 6 300 x 10 ¹² = 6.3 x 10 ³ x 10 ¹² = 6.3 x 10 ¹⁵

e. 0.012 500 x 10 ⁻¹⁴ = 1.25 x 10 ⁻² x 10 ⁻¹⁴ = 1.25 x 10 ⁻¹⁶

f. 0.012 500 x 10 ⁻² = 1.25 x 10 ⁻² x 10 ⁻²  = 1.25 x 10 ⁻⁴

g. 0.012 500 x 10 ¹⁵ = 1.25 x 10 ⁻² x 10 ¹⁵ = 1.25 x 10 ¹³

h . 81 500 000 x 10 ²³ = 8.15 x 10 ⁷ x 10 ²³ = 8.15 x 10 ³⁰

i . 81 500 000 x 10 ¹³ = 8.15 x 10 ⁷ x 10 ¹³ = 8.15 x 10 ²⁰

j . 81 500 000 x 10 ⁻³⁴ = 8.15 x 10 ⁷ x 10 ⁻³⁴ = 8.15 x 10 ⁻²⁷