Students use the rule to fill in the blank boxes.. Common Core 3.OA.9
Fill in the appropriate operators (addition or subtraction).
Fill in the appropriate operators, addition or subtraction symbols.
Fill in the appropriate operator symbols, addition or subtraction.
Addition and subtraction practice and assessment. Includes; practice worksheets, in and out boxes, and matching game.
This penguin theme unit is a great way to practice counting and adding to 20. This 21 page unit includes; tracing numbers, cut and paste, finding patterns, ten frame activity, in and out boxes and much more! CC: Math: K.CC.B.4