List of top Mathematics Questions on Use of Exponents to Express Small Numbers in Standard Form asked in CBSE Class VIII

Express the following numbers in standard form.
(i) 0.0000000000085
(ii) 0.00000000000942
(iii) 6020000000000000
(iv) 0.00000000837
(v) 31860000000

Express the number appearing in the following statements in standard form.
(i) 1 micron is equal to \(\frac{1}{1000000}\) m
(ii) Charge of an electron is 0.000,000,000,000,000,000,16 coulomb.
(iii) Size of a bacteria is 0.0000005 m
(iv) Size of a plant cell is 0.00001275 m
(v) Thickness of a thick paper is 0.07 mm

In a stack there are 5 books each of thickness 20 mm and 5 paper sheets each of thickness 0.016 mm. What is the total thickness of the stack

Express the following numbers in usual form. 
(i) 3.02×10⁻⁶
(ii) 4.5×10⁴
(iii) 3×10⁻⁸
(iv) 1.0001×10⁹
(v) 5.8×10¹²
(vi) 3.61492×10⁶