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Integers — MATHS STD 6 — Question

Gujarat BoardEnglish MediumSTD 6MATHSIntegers2 Marks
Question
Write the digits $0, 1, 2, 3, ..., 9$ in this order and insert $‘+’$ or $‘–’$ between them to get the result $3.$
✓

Answer

Given digits are $0, 1, 2, 3, 4, 5, 6, 7, 8$ and $9.$ To get sum $3, 0 + 1 + 2 + 3 - 4 + 5 + 6 + 7 - 8 - 9 = 1 + 2 + 3 + 5 + 6 + 7 - (4 + 8 + 9) = 24 - 21 = 3.$

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