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#### Chapters

1 - Rational Numbers2 - Linear Equations in One Variable

3 - Understanding Quadrilaterals

4 - Practical Geometry

5 - Data Handling

6 - Squares and Square Roots

7 - Cubes and Cube Roots

8 - Comparing Quantities

9 - Algebraic Expressions and Identities

10 - Visualising Solid Shapes

11 - Mensuration

12 - Exponents and Powers

13 - Direct and Inverse Proportions

14 - Factorisation

15 - Introduction to Graphs

16 - Playing with Numbers

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### Chapter 1 - Rational Numbers

#### Pages 14 - 15

Using appropriate properties find.

`-2/3 xx 3/5 + 5/2 - 3/2 xx 1/6`

Using appropriate properties find

`2/5 xx (-3/7) - 1/6 xx 3/2 + 1/14 xx 2/5`

Write the additive inverse of: `2/8`

Write the additive inverse of `(-5)/9`

Write the additive inverse of `(-6)/(-5)`

Write the additive inverse of `2/(-9)`

Write the additive inverse of `19/(-6)`

Verify that – (– x) = x for x = `11/15`

Verify that – (– x) = x for x = `-13/17`

Find the multiplicative inverse of -13

Find the multiplicative inverse `(-13)/19`

Find the multiplicative inverse of `1/5`

Find the multiplicative inverse `(-5)/8 xx (-3)/7`

Find the multiplicative inverse of `-1 xx (-2)/5`

Find the multiplicative inverse -1

Name the property under multiplication used in given

`(-4)/5 xx 1 = 1 xx (-4)/5 = -4/5`

Name the property under multiplication used in given

`-13/17 xx (-2)/7 = (-2)/7 xx (-13)/17`

Name the property under multiplication used in given

`-19/29 xx 29/(-19) = 1`

Multiply `6/13` by the reciprocal of `-7/16`

Tell what property allows you to compute `1/3 xx(6xx4/3)` as `(1/3 xx 6) xx 4/3`

Is `8/9` the multiplicative inverse of -1 `1/8`? Why or why not?

Is 0.3 the multiplicative inverse of 3 `1/3` ? Why or why not?

Write: The rational number that does not have a reciprocal

Write : The rational numbers that are equal to their reciprocals.

Write : The rational number that is equal to its negative.

Fill in the blanks

Zero has __________ reciprocal.

Fill in the blanks

The numbers __________ and __________ are their own reciprocals

Fill in the blanks

The reciprocal of − 5 is ______.

Fill in the blanks

Reciprocal of `1/x` where `x != 0` is _______

Fill in the blanks.

The product of two rational numbers is always a ________.

Fill in the blanks

The reciprocal of a positive rational number is ________.

#### Page 20

Represent these numbers on the number line

`7/4`

Represent these numbers on the number line.

`-5/6`

Represent `(-2)/11, (-5)/11, (-9)/11` on the number line.

Represent `(-2)/11, (-5)/11, (-9)/11` on the number line.

Write five rational numbers which are smaller than 2.

Find ten rational numbers between `(-2)/5` and `1/2`

Find five rational numbers between `2/3 " and " 4/5`

Find five rational numbers between `(-3)/2 " and " 5/3`

Find five rational numbers between `1/4 " and " 1/2`

Write five rational numbers greater than − 2

Find ten rational numbers between `3/5 " and " 3/4`

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