Write and Interpret Numerical Expressions
Elementary School Math · Flashcards · Recall
ELEMENTARY SCHOOL MATH · FLASHCARDS
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QUESTION
What is the meaning of
2
×
(
x
+
7
)
2 \times (x+7)
2
×
(
x
+
7
)
without evaluating it?
QUESTION
What do parentheses mean in an expression such as
2
×
(
8
+
7
)
2 \times (8+7)
2
×
(
8
+
7
)
?
QUESTION
What is the meaning of
(
x
+
7
)
÷
2
(x+7) \div 2
(
x
+
7
)
÷
2
without evaluating it?
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ANSWER
The sum of
x
x
x
and
7
7
7
, divided by
2
2
2
. Parentheses ensure addition happens before division.
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