The m+e+a+n is the sum of all the values 4 divided by the number of values. Key Facts The formula for the circumference of a circle is c = 2 r The mode is the most common value. Think carefully about calculations. Decide whether to use: a mental calculation;.
divided by the number of values.
a mental calculation with some jottings
a written method
Pick out important
words or symbols
Look for words likesum,
Algebra has the same rules as arithmetic
Check to see that you have got
the units correct and that you
have written the answer in the
Never give the probability of an
event as a ratio or as odds