Maths foundation🔥

• square number- a number multiplied by itself
• prime Number- a number that is only divisible by 1 and itself
• Odd numbers- numbers ending in 1, 3, 5, 7, 9
• Even numbers- numbers ending in 0, 2, 4, 6, 8
• Parallel lines- lines that will never meet
• Obtuse angle- an angle measuring between 90 degrees and 180 Degrees
• Acute angle- an angle measuring under 90 degrees
• Right angle- 90 degrees exactly
• Straight lines add up to 180 degrees
• Angles on a point add up to 360 degrees
• Angles in a triangle add up to 180 degrees
• area - width x height
• Perimeter- all sides added together
• Square- equal sides
• 31 is an odd number
• 22 is an even number
• The positive numbers added together make a positive number
• A negative number + a negative number = a negative number (eg -2 + -2 = -4)
• (- +) = -

  (+ +) = +

  (- -) = +
• Factors- the numbers that times together to make the number (eg factors of 8 = 1 and 8, 2 and 4)
• Multiples- if something is found in the timestables (eg 16 is a multiple of 8 because 8 x 2 = 16)
• To find the lowest common multiple - list out the timestables and of the numbers provided and the first one that appears in both is the LCM
• Calculating the mean- all the numbers added together, divided by the amount.
• To Find the median- put all the number into ascending order and the number in the middle is the median
• To find the mode- the number that appears in the list the most
• Ascending order- smallest to largest
• Descending order- largest to smallest
• The range- the smallest number in a list taken away from the largest
• If x is worth 4, what is 2x?

  8
• If x is worth 3, what is 4x

  12
• If x is worth 7, what is 3x

  21
• If x is worth 3, what is 4x -2

  10 (because 4 x 3 = 12, -2 = 10)
• If x is worth 6, what is 2x + 3

  15
• What is 16/x, when x = 2

  8 (because 16 divided by 2 = 8)
• 3(2x + 3)

  6x + 9 (because you times each number in the bracket by the number outside the bracket)
• What is the median in 3, 4, 5, 6, 7

  5
• What is the range of 4, 7, 9, 12

  8 because you subtract the smallest (4) from the largest (12)
• What is the range of 3, 15, 8, 9

  12 (because you subtract the smallest number (3) away from the largest (15)
• What is 3 squared (3 times itself)

  9
• 4 squared

  16