The purposes of this research were: 1) to develop mathematics learning activities for addition, subtraction, combined multiplication and division for Prathomsuksa III students 2) to compare the mathematics learning achievement of Prathomsuksa III students before and after the experiment using mathematics learning activities 3) to compare the mathematical skills processes of Prathomsuksa III students before and after the experiment using mathematics learning activities and 4) to study satisfaction of Prathomsuksa III students using mathematics learning activities.
