Mental arithmetic level 4
These are not interactive exercises -you need pen and paper to write your answers down.
Multiples and factors
Expending brackets
Simple second order equations
Square roots
Factorising
Calculations
with square roots I
Expending brackets
with square roots
Calculations
with square roots II
Inequalities
represented on a line
Percentages
with a calculator
Solutions to inequalities
contrat Creative Commons