Maths🧮

• BIDMAS

  Brackets, Indices, Division, Multiplication, Addition, and Subtraction - order of operations
• Order of Operations


  BIDMAS: Brackets, Indices, Division, Multiplication, Addition, and Subtraction
• Adding Negative Numbers


  When adding two negative numbers, the result is a positive number
• Subtracting Negative Numbers


  When subtracting two negative numbers, the result is a positive number
• Negative Number Rules


  - a - b = a + b, -a + -b = a + b, -a - -b = a - b, a - -b = a + b if a > b
• Negative Number


  A real number less than zero
• Representing Negative Numbers


  - followed by the absolute value of the number
• Negative Number Properties


  (-a) × (-b) = a × b, (-a) × b = -(a × b), -(-a) = a
• Rounding


  Simple rounding to the nearest tens, hundreds, thousands, etc.
• Rounding Rules


  Even numbers: 0,5 → 0; Odd numbers: 0,5 → 0/1; 5+ → ↑; < 5 → ↓
• Examples of Rounding


  (various examples of rounding numbers to the nearest ten, hundred, etc.)
• Multiples


  Result of multiplying a number by an integer
• Factors


  Integer that divides a number without leaving a remainder
• Identifying Multiples and Factors

  Multiples: multiply the number by different integers; Factors: divide the number by different integers until you get a whole number
• Congruent Shapes


  Share the same size and shape, can be directly superimposed without overlapping.
• Enlargement


  Increasing the size of a shape while maintaining its original proportions.
• Transformation


  A change in position, size, or shape, without altering original proportions.
• Translation/Sliding


  Moving a figure from one position to another, without changing size or shape.
• Rotation


  Turning a figure around a fixed point (center of rotation).
• Enlargement/Reduction/Scaling


  Increasing or decreasing size, while maintaining original shape and proportions.
• What is a pictogram?


  A graph or chart that uses pictures, symbols, or images to represent data or information.
• What do pictograms use to represent data?


  Pictures, symbols, or images.
• Example of a pictogram:


  A group of three monkeys to represent the number three.
• What is the main purpose of using pictograms?


  To help people understand complex data quickly and easily.
• Symbol for one:


  ⭐️
• Symbol for two:


  ⭐️⭐️
• Symbol for many:


  ⭐️⭐️⭐️⭐️⭐️
• Symbol for money:

  ¥
• Symbol for a picture:


  📸
• Symbol for a heart:


  ♥️
• Symbol for a star:


  ⭐️
• Symbol for a traffic light:


  ⛔️
• What type of graph is a bar chart?


  A type of graph that uses bars to compare categorical data.
• What is the main purpose of a bar chart?


  To display how different categories relate to each other.
• What kind of data is typically used in a bar chart?


  Categorical data.
• What is an example of a bar chart?


  A graph with bars representing different quantities or categories.
• What is typically shown on the x-axis in a bar chart?


  Categorical data labels.
• What type of data is best suited for a line graph?

  Continuous data.
• What does a line graph show?


  A relationship or trend between two or more continuous variables.
• What is characteristic of a line graph?


  A continuous curve connects the data points.