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Mathematics
Mathematics
Problem
Solve each integer addition problem:
Expression
Same or Different Signs?
Answer
−
9
+
6
-9 + 6
−
9
+
6
−
7
+
(
−
3
)
-7 + (-3)
−
7
+
(
−
3
)
12
+
(
−
5
)
12 + (-5)
12
+
(
−
5
)
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