Addition And Subtraction Fluency
Elementary School Math · Flashcards · Recall
ELEMENTARY SCHOOL MATH · FLASHCARDS
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QUESTION
What relationship helps you use
8
+
4
=
12
8+4=12
8
+
4
=
12
to solve
12
−
8
12-8
12
−
8
quickly?
QUESTION
What strategy is shown by rewriting
8
+
6
8+6
8
+
6
as
8
+
2
+
4
8+2+4
8
+
2
+
4
to make
10
10
10
first?
QUESTION
What strategy is shown by starting at
9
9
9
and counting on
3
3
3
more to find
9
+
3
9+3
9
+
3
?
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ANSWER
Counting on. Start at the larger number and count up by the smaller.
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