Addition And Subtraction Fluency
1st Grade Math · Flashcards
1ST GRADE MATH · FLASHCARDS
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QUESTION
What is
14
−
6
14-6
14
−
6
by decomposing to ten:
14
−
4
−
2
14-4-2
14
−
4
−
2
?
QUESTION
What is the value of
11
−
7
11-7
11
−
7
using the related addition fact
7
+
4
=
11
7+4=11
7
+
4
=
11
?
QUESTION
What is
12
−
8
12-8
12
−
8
if you know the related fact
8
+
4
=
12
8+4=12
8
+
4
=
12
?
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ANSWER
4
4
4
. Since
8
+
4
=
12
8+4=12
8
+
4
=
12
, the missing addend in
8
+
?
=
12
8+?=12
8
+
?
=
12
is
4
4
4
.
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