Maths skills in Science

This 100+ page PowerPoint comprehensively covers the maths skills needed to succeed in GCSE science. The powerpoint has explanations, questions and answers for the skills.
Covering:
-Decimals, fractions, ratios and percentages
-Standard form

• Estimates
  -Order of magnitude
  -Converting units
  -Appropriate number of significant figures
  -Mean, median and mode
  -Frequency tables and diagrams, histograms and bar charts
  -Scatter diagrams and correlations
  -Simple probability
  -Mathematical symbols (=, <, <<, >>, >, etc)
  -Rearranging equations
  -Solving simple algebraic equations
  -Translating between graphical and numerical form
  -y=mx+c
  -Determining the gradient of a graph
  -Calculating a rate of change
  -Calculating surface areas and volume