MATHS CLASS 8 CH - 12 EXPONENTS AND POWER MENTAL MATHS

Exponent is used to express very large no. and very small number in _______________

(SELECT ALL THE CORRECT OPTIONS)

• Larger form

• Decimal notation

• Standard Form

• Scientific Notation

Very large numbers can be expressed in standard form using ________ exponents

Very small numbers can be expressed in standard form using __________ exponents

x⁰ =

x^a * y^a =

• xy^a

• xy

• x^ay

• (xy)^a

Evaluate [(-5)²]^1/2

If 2^a = 1/64. Find a

• -4

• -6

• -8

• 6

What is the value of x if 6² + x² = 10²

The thickness of a sheet of paper is 0.0015 cm . What is the standard form of thickness of 2 papers?

If 5^6x = 125⁶ . Find the value of x