Maths

• Mode is the most common number
• Median is the middle number when arranged
• To find the median, add the two medians and divide by 2
• Range is found by subtracting the smallest number from the biggest number
• Any number to the power of 0 is 1
• Prime factors include: 2, 3, 5, 7, 11, 13, 19, 23, 29
• Any number to the power of 1 is the same as the original number
• In indices, the small number is the power index or exponent, and the big number is the base
• When multiplying two indices together, add the exponents
• When dividing indices, subtract the exponents
• Negative and positive numbers equal a negative result
• Positive and negative numbers equal a negative result
• Positive and positive numbers equal a positive result
• Negative and negative numbers equal a positive result
• Different types of data include numerical (quantitative) and non-numerical (qualitative) data
• Numerical data can be discrete (e.g., shoe size, number of children in a class) or continuous
• Frequency is the number of times a particular value occurs in a set of data
• In sequences, we have the Fibonacci sequence, geometric sequence, and arithmetic sequence
• Geometric sequence involves multiplying or dividing, arithmetic sequence involves adding the same number, and Fibonacci sequence involves adding the two previous numbers
• When solving double inequalities, use an inequality symbol instead of an equal sign
• Flip the sign when multiplying or dividing by a negative number
• Angles on a straight line add up to 180 degrees
• Angles around a point add up to 360 degrees (full Revolution)
• Vertically opposite angles are equal
• Angles in a quadrilateral add up to 360 degrees
• Interior angles on parallel lines add up to 180 degrees