Adding in Any Order
In this addition worksheet, 1st graders solve 5 problems in which picture clues are used to add numbers below 10. Students will discover the commutative property of addition.
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Adding Objects in Rectangular Arrays - Step-by-Step Lesson
These aliens will be familiar to any mathematicians who have seen Toy Story! Use an array of them to practice addition and writing number sentences. Because this worksheet includes the explanation to its one problem, project it as an...
1st - 2nd Math CCSS: Adaptable