## Index

**Gr. 7 Rainbow Maths Book 1 Index**

Represent nine-digit numbers

Compare and order whole numbers

Prime numbers

Rounding off to the nearest 5, 10, 100 and 1 000

Calculating whole numbers

Factors and multiples

Fractions

Decimals

Patterns

2-D shapes and 3-D objects

Transformations

Area, perimeter and volume

Time

Temperature, length, mass and capacity

Probability

Data

Commutative property of addition and multiplication

Associative property of addition and multiplication

Distributive property of multiplication over addition

Zero as the identity of addition, one as the identity of multiplication, and other properties of numbers

Multiples

Divisibility and factors

Ratio

Rate

Money in South Africa

Finances – Profit, loss and discount

Finances – Budget

Finances – Loans and Interest

Finances

Square and cube numbers

Square and cube roots

Exponential notation

Estimate and calculate exponents

Estimate and calculate more exponents

Numbers in exponential form

Construction of geometric figures

Angles and sides

Size of angles

Using a protractor

Parallel and perpendicular lines

Construct angles and a triangle

Circles

Triangles

Polygons

Congruent and similar shapes

Fractions

Equivalent fractions

Simplest form

Add common fractions with the same and different denominators

Multiply unit fractions by unit fractions

Multiply common fractions by common fractions with the same and different denominators

Multiply whole numbers by common fractions

Multiply common fractions and simplify

Solve fraction problems

Solve more fraction problems

Fractions, decimals and percentages

Percentage increase and decrease

Place value, and ordering and comparing decimals

Writing common fractions as decimals

Decimal fractions

Addition and subtraction with decimal fractions

Multiplication of decimal fractions

Division, rounding off and flow diagrams

Flow diagrams

Tables

Input and output values

Perimeter and area

Area of triangles

Area conversion

Understanding the volume of cubes

Volume of cubes

Volume of rectangular prisms

Volume problems

Volume and capacity

Surface area of a cube

Surface area of rectangular prisms

Surface area problem solving