NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 40

EASY

8th CBSE

IMPORTANT

Earn 100

Very small numbers can be expressed in standard form by using exponents.

50% studentsanswered this correctly

Important Questions on Exponents and Powers

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 41

Very large numbers can be expressed in standard form by using _____ exponents.

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 42

By multiplying

(10)^{5}

by

(10)^{- 10}

we get

10^{k}

,

k

is _____.

HARD

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 43

{[{(\frac{2}{13})}^{- 6} \div {(\frac{2}{13})}^{3}]}^{3} \times {(\frac{2}{13})}^{- 9} =

_____

MEDIUM

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 44

The value of

{[4^{- 1} + 3^{- 1} + 6^{- 2}]}^{- 1}

is _____.

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 45

{[2^{- 1} + 3^{- 1} + 4^{- 1}]}^{0} =

_____

MEDIUM

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 46

The standard form of

(\frac{1}{100000000})

is

1.0 \times 10^{k}

, then

k =

_____.

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 47

The standard form of

12340000

is _____.

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 8 - Exponents and Powers>Exercise>Q 48

The usual form of

3.41 \times 10^{6}

is _____.