Find the smallest number by which 200 should be multiplied to make it a perfect cube.

Evaluate:\(\left( \cfrac { 1 }{ 2 } \right) ^{ -5 }\)

Evaluate : (-3)

Evaluate:\(\left( { 2 }^{ -1 }\times { 3 }^{ -1 } \right) \div { 6 }^{ -2 }\)

Evaluate :\(\left(2^{-1}+3^{-1}\right) \div 6^{-1}\)

Express this number in standard notation.
The radius of a hydrogen atom is 2.5 x 10^–11 m.

A greeting card has an area 90 cm². Between what two whole numbers is the length of its side?

A group of 1536 cadets wanted to have a parade forming a square design. Is it possible? If it is not possible how many more cadets would be required?

Evaluate:\(\sqrt { 286225 } \) and use it to compute \(\sqrt { 2862.5 } +\sqrt { 28.6225 } \)

Order the following from the least to the greatest: 16²⁵ , 8¹⁰⁰ , 3⁵⁰⁰ , 4⁴⁰⁰ , 2⁶⁰⁰