Number System
Divisibility, remainders, unit digits and factors.
Work through the chapters in order, or continue with the one you need today.
Divisibility, remainders, unit digits and factors.
Common factors and multiples in word problems.
Percentage change, successive changes and comparisons.
Cost price, selling price, marked price and discounts.
Interest, growth and the difference between SI and CI.
Sharing, combining ratios and partnerships.
Means, weighted averages and replacements.
Work rates, pipes and cisterns.
Relative speed, trains and boats.
Mixing at a target average and repeated replacement.
Counting arrangements and selections.
Chance with coins, dice, cards and selections.