Subtraction or take away or minus, at this level, conceptually is what happens when one, two or more items are taken away from a group of similar items. Subtraction can take place in so many forms, and the key to getting children to grasp it is to begin with simple activities of taking items away from a group of identical items. In these free worksheets, children will work with taking away identical items.
Steps to teach subtraction :
Break it up. Don’t overwhelm your child.
Visualize and help them strategize
Practice regularly using worksheets
Help them correlate subtraction with real world problems.