Tolong kerjakan dengan cara ​

Jawaban:

a.12 = 1,2 x 10

12 x 10⁵ = 1,2 x 10 x 10⁵

= 1,2 x 10¹⁺⁵

= 1,2 x 10⁶

b. 123 × 10⁻⁷

123 = 1,23 x 10²

123 x 10⁻⁷ = 1,23 x 10² x 10⁻⁷

= 1,23 x 10²⁻⁷

= 1,23 x 10⁻⁵

c. 4567 × 10⁶

4567 = 4,567 x 10³

4567 x 10⁶ = 4,567 x 10³ x 10⁶

= 4,567 x 10³⁺⁶

= 4,567 x 10⁹

d. 6780000

6780000 = 6,78 x 1000000

= 6,78 x 10⁶

e. 78000000000

78.000.000.000 = 7,8 x 10.000.000.000

= 7,8 x 10¹⁰

f. 0,000678

0,000678 = 6,78 x 1/10.000

= 6,78 x 10⁻⁴

g. 0,00000000078

0,00000000078 = 7,8 x 1/10000000000

= 7,8 × 10⁻¹⁰

Semoga bermanfaat ..