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The aim of Level A is for students to develop addition and subtraction skills by using the basic addition skills they acquired up to Level 2A. This will prepare students for the vertical (column) calculations in Level B.


Developing smooth calculation ability is 1-digit plus 1-digit addition up to Worksheet A40 will ensure a smooth progress in Workbook A41 and beyond solving the addition problems that involve 2- digits numbers.

Solid calculation skills to solve addition problems that involve 2-digit numbers in Worksheets A41–80 Will ensure that smooth progress in Level B where students will solve vertical (column) calculation problems.

It is important to students to strengthen their addition skills sufficiently before they advanced to subtraction exercises. This will ensure smooth progress in subtraction.