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Students use the commutative property to find missing numbers in equations and explain the property.

Students explore the additive identity by completing open number sentences.

Students complete open number sentences to show their understanding of equality.

Students explore multiplicative relationships by completing multiplication equations using a restricted range of numbers.

Students explore multiplicative relationships by completing multiplication equations.

Students explore the concept of equality by deciding whether addition sentences are true, false or not proper number sentences.

Students explore the additive identity by deciding whether addition and subtraction number sentences are true or false.

Students exploit additive identity property to find missing numbers in addition and subtraction equations.