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7 + 5 = 12
15 − 7 = 8
The plus (+) sign is used for addition.
The minus (−) sign is used for subtraction.
The result of addition is called the sum.
The result of subtraction is called the difference.
23 + 14 = 37
42 − 18 = 24
34 + 6 = 40
50 − 25 = 25
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