GCSE math foundation revision exam questions with complete solutions

Factors - ANSWER-Numbers that fit into another number exactly Multiples - ANSWER-The times table for that number Prime Numbers - ANSWER-2,3,5,7,11 a number with only 2 factors: 1 and itself Triangle types: Equilateral - ANSWER-Equilateral: all sides the same length, all angles equal 60 degrees Multiply fractions - ANSWER-Multiply the top numbers together Multiply the bottom number together Dividing fractions - ANSWER-KFC Keep Flip Change Adding and subtracting fractions - ANSWER-DO NOT add or subtract until the denominator (bottom number) is the same. Use the scissors or the cherry Mean - ANSWER-Add them all up Divide this number by how many values you have Mode - ANSWER-The most common number Median - ANSWER-Order the numbers Find the middle number Triangle types: Isosceles - ANSWER-Two longer sides are equal length Base angles are equal Angles add up to 180 degrees Pythagoras theorem - ANSWER-Find the missing length of a right angled triangle Angles on a straight line - ANSWER-Add up to 180 degrees Angles in quadrilateral (4 sided shape) - ANSWER-Add up to 360 degrees Angles in parallel lines: Co interior - ANSWER-Co - interior angles - C shape in any direction Add up to 180 degrees