In this Custom Set, children experiment with addition and subtraction calculations, by building sums to make a given target number.
Each grid contains a target number, a set of three numbers, an addition sign, a subtraction sign and an equals sign. Click on the numbers and signs to make the target number. This set uses the numbers 1, 2 and 4.
For more Clicker sets like these, search for target numbers on LearningGrids.