Identify Equivalent Expressions
Middle School Math · Flashcards · Recall
MIDDLE SCHOOL MATH · FLASHCARDS
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QUESTION
Which property justifies rewriting
a
+
a
+
a
a+a+a
a
+
a
+
a
as
3
a
3a
3
a
?
QUESTION
What does it mean for two expressions to be equivalent?
QUESTION
Which property justifies rewriting
a
+
a
+
a
a+a+a
a
+
a
+
a
as
3
a
3a
3
a
?
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ANSWER
Combining like terms (repeated addition as multiplication). Adding the same term multiple times equals multiplying by the count.
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