Répondre :
10 ⁻⁵ : 10
= 10 ⁻⁵⁻¹
= 10 ⁻⁶
= 0 .000 001
3 x 10 ⁻² + 7 = 3/100 + 700/100 = 703 /100 = 7.03
10 ⁻³ + 10 ⁻² = 0. 001 + 0.01 = 0.011
5 x 10 ⁻⁴ = 0.000 5
10 ⁻⁵ : 10
= 10 ⁻⁵⁻¹
= 10 ⁻⁶
= 0 .000 001
3 x 10 ⁻² + 7 = 3/100 + 700/100 = 703 /100 = 7.03
10 ⁻³ + 10 ⁻² = 0. 001 + 0.01 = 0.011
5 x 10 ⁻⁴ = 0.000 5