Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 2

EASY

8th CBSE

IMPORTANT

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is the additive identity and $1$ is the multiplicative identity for rational numbers.

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Important Questions on Worksheet 1

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IMPORTANT

Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 2

If

x

is a non-zero rational number and

m, n

are two integers, then

x^{m} \times x^{n} =

_____

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IMPORTANT

Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 2

A number with

n

digits has _____ digits in its square.

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8th CBSE

IMPORTANT

Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 2

A number with

2, 3, 7 or 8

at the ones place can never be a perfect _____ number.

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8th CBSE

IMPORTANT

Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 2

A number is divisible by

9

, if the _____ of its digit is divisible by

9

. (sum/product/division)

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8th CBSE

IMPORTANT

Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 2

If

\frac{p}{q}

and

\frac{r}{s}

are two rational numbers, then

\frac{p}{q} : \frac{r}{s}

is also a _____ number.

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8th CBSE

IMPORTANT

Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 2

_____ is the opposite of cube.

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8th CBSE

IMPORTANT

Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 2

_____ is used to express very large or very small numbers more easily.

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8th CBSE

IMPORTANT

Math Sight book>Chapter 17 - Worksheet 1>Worksheet 1>Q 3

Find any three rational numbers between

\frac{- 1}{3} and {(\frac{1}{2})}^{2}

.