The first five combinations of each page emphasise the relationships between numbers. Basic addition and subtraction combinations are extended to higher numbers. Another five computations on each page are allotted to halves and quarters. All basic tables include 13 x as well as 20 x, 30 x, 40 x etc. Also includes mixed division sums as well as “fill in the missing number” sums for both division and subtraction.
Learners who work systematically through this series should master their bonds and tables with ease.