Key Facts
Explain
• The formula for the circumference of a
circle is
c=2r
• The mode is the most common value
• The m+e+a+n is the sum of all the values
4
• how you worked out
angles or lengths from
divided by the number of values.
those you were given.
• how you came to conclusions
Think carefully about calculations.
Decide whether to use:
• a mental calculation;
• a mental calculation with some jottings
• a written method
• a calculator
Top Tips
Pick out important
words or symbols
sum,
product, calculate
Look for words like
Remember
Algebra has the same
rules as arithmetic
Check your answer is
Don’t Do It
• Don’t assume a diagram is drawn
accurately
• Do not misread scales
• Never give the probability of an
event as a ratio or as odds
sensible
• Do a rough estimate
• Does your answer feel close ?
• Check to see that you have got
the units correct and that you
have written the answer in the
correct way
• Check to see if you were asked
to give the answer to a certain
number of decimal places or
significant figures
Personal!
• try to correct your worst habits
• write it at the top of your answer
book in pencil
• go back and check when you
need them during the exam.