percentages
—calculating
positive numbers
practice sheets
R
reference numbers
—experimenting with
—numbers above
—numbers above and below
—reasons for using
—using 50
—using
—using any number
—using decimals
—using factors as division
—using fractions 99
—using two numbers
remainders
—finding with a calculator
remembering methods
S
solving problems in your head
speed mathematics method
squaring numbers ending in 5
substitute numbers
see checking answers
substitute numbers
subtraction
—from a power of 10
—numbers around 100
—shortcut for
—smaller numbers
—written methods
T
test yourself
U
using the methods in class
W
working through problems