Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 9

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If the scientific notation of mass of the moon $73, 49, 00, 00, 00, 00, 00, 00, 00, 00, 000 kg$ is $7.349 \times 10^{k} kg$ , then $k$ is

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Important Questions on Powers and Exponents

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7th CBSE

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Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 9

If the scientific notation of distance between the Sun and the Earth i.e.,

1, 46, 90, 00, 00, 000 m

is

1 .469 \times 10^{k} m

, then

k

is

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Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 9

If the scientific notation of mass of the Jupiter i.e.,

1, 89, 87, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 000 kg

is

1.8987 \times 10^{k} kg

, then

k

is

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IMPORTANT

Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 10

Express

2.36 \times 10^{9}

in the expanded form without commas.

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7th CBSE

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Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 10

Express the following number in the expanded form.

5.6 \times 10^{11}

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Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 10

Express the following number in the expanded form.

0.8 \times 10^{- 5}

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Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 10

Express the following number in the expanded form.

2.1875 \times 10^{- 6}

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Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 1

The value of the

{(- 1)}^{188}

is

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7th CBSE

IMPORTANT

Active Teach Maths Ace>Chapter 5 - Powers and Exponents>Review Time>Q 2

Evaluate:

{[{\{{(a^{7})}^{3}\}}^{2}]}^{4}