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எந்த முழு எண் வெற்றிடத்தை நிரப்புகிறது: ___ + (−18) = −31?

A49
B13
C−49
D−13
Answer & Solution
Correct answer: D. −13
18 ஐ −31 ஐ சேர்ப்பது −13 இல்லாத முழு எண்ணைக் கொடுக்கும்.
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