Subtraction As An Unknown-Addend Problem
Elementary School Math · Flashcards · Recall
ELEMENTARY SCHOOL MATH · FLASHCARDS
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QUESTION
What does
a
−
b
a-b
a
−
b
mean when you rewrite it as an unknown-addend equation?
QUESTION
What does
a
−
b
=
?
a-b=?
a
−
b
=
?
mean as an unknown-addend problem written with addition?
QUESTION
What does
a
−
b
=
c
a-b=c
a
−
b
=
c
mean as an unknown-addend addition sentence?
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ANSWER
b
+
c
=
a
b+c=a
b
+
c
=
a
. Subtraction reverses to addition by switching the difference and subtrahend.
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