# Numbers

- Natural, counting and whole numbers
- Negative numbers
- Addition using negative numbers
- Handy Hint #1 - Introducing brackets
- Minus signs outside brackets

- Number line question
- Negative numbers on the calculator
- Negative numbers on the calculator
- Composite numbers
- Factors and products
- Prime numbers
- Square numbers
- Integers

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- Writing fractions
- Proper fractions
- Equivalent fractions
- Improper fractions
- Mixed numbers
- Reciprocals
- Simplifying fractions
- Greatest common factor
- Greatest common factor question
- Greatest common factor – one technique
- Handy Hint #2 - Greatest common factor
- Greatest common factor question
- Fractions as percentages

- Don’t be a sucker at clearance sales
- Commission

DOING CALCULATIONS WITH FRACTIONS

- Addition with fractions
- Fraction addition problem
- Subtraction with fractions
- Fraction subtraction question
- Multiplication with fractions
- Handy Hint #3 - Multiplying with fractions
- Fraction multiplication question
- Dividing with fractions
- Handy Hint #4 - Dividing with fractions
- Fraction division question
- Fractions on your calculator
- Calculator fractions question
- Fractions on your calculator

- Rounding to a number of decimal places
- Handy Hint #5 - Rounding to decimal places
- Rounding question
- Handy Hint #6 - Tricky rounding
- Rounding to a number of significant figures
- What are significant digits?
- Handy Hint #7 - Rounding to significant figures
- Significant figures question
- Significant figures question