(can use the same idea to show multiple ways of adding/subtracting) GREAT!-- multiplication unit to teach repeated addition, groups of, commutative property, and arrays. You could also replace one with a multiplication word problem and picture.

Help your kids have fun while learning their doubles math facts with this Domino Doubles Game from Creative Family Fun. Good maintenance drill once learned.

Exploring doubles- Australian Curriculum - Year 2 - - Solve simple addition & subtraction problems using a range of efficient mental & written strategies Commutative Property, Building to Doubles, Tens facts, Adding 10