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प्रश्न
Ramu evaluated the expression –7 – (–3) and came up with the answer –10. What did Ramu do wrong?
बेरीज
उत्तर
7 – (– 3) = –7 + 3 = –4
But –7 – 3 = –10
∴ Ramu have done addition in place of subtraction.
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