 # What does the Sums??–Simple!! maths book contain?

Here is a brief summary of the contents:

## Section A: Decimal number system and place value

Including:
• Place value
• Writing of numbers in words
• Writing of numbers in figures

## Section B: Addition

Including:
• What is addition?
• Addition involving “exchange” / “carrying”

## Section C: Subtraction

Including:
• What is subtraction?
• Simple subtraction
• Subtraction involving "decomposition"

## Section D: Multiplication

Including:
• What is multiplication?
• The importance of mental arithmetic
• Short multiplication
• Multiplication by tens, hundreds, thousands etc.
• Long multiplication

## Section E: Division

Including:
• What is division?
• Short division
• Division by tens, hundreds, thousands etc.
• Factors
• Long division using factors
• Short division using long division method
• Long division

## Section F: Fractions

Including:
• What are (vulgar) fractions?
• Mixed numbers
• Improper fractions
• Equivalence of fractions
• Addition and subtraction of fractions
• Multiplication of fractions
• Multiplication of fractions using cancellation
• Division of fractions
• Finding fractional amounts

## Section G: Decimals, Money and Metric Measures

Including:
• What are decimal fractions?
• Short multiplication and division of decimals
• "Correcting" to a number of decimal places
• Multiplication and division of decimal fractions by tens, hundreds, thousands etc.
• Long multiplication and division of decimals
• Changing decimal fractions into vulgar fractions
• Changing vulgar fractions into decimal fractions
• Multiplication of a decimal by a decimal
• Division of a decimal by a decimal
• Money and metric measures

## Section H: Percentages

Including:
• What are percentages?
• Changing percentages into vulgar fractions and decimal fractions
• Changing decimal fractions and vulgar fractions into percentages
• Finding percentage amounts

## Section J: Answers to revision exercises page

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