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    Question

    Select the correct combination of mathematical signs to

    sequentially replace the * signs and balance the given equation. 21 * 3 * 36 * 2 * 23 = 68
    A รท โˆ’ ร— + Correct Answer Incorrect Answer
    B รท ร— + โˆ’ Correct Answer Incorrect Answer
    C + ร— โˆ’ รท Correct Answer Incorrect Answer
    D ร— โˆ’ รท + Correct Answer Incorrect Answer

    Solution

    1) 21 รท 3 โ€“ 36 x 2 + 23 = 68 7 โ€“ 36 x 2 + 23 7 โ€“ 72 + 23 - 42 โ‰  68 2) 21 รท 3 x 36 + 2 - 23 = 68 7 x 36 + 2 โ€“ 23 252 + 2 โ€“ 23 231 โ‰  68 3) 21 + 3 x 36 - 2 รท 23 = 68 21 + 3 x 36 โ€“ 0.67 = 68 21 + 108 โ€“ 0.67 = 68 128.33 โ‰  68 4) 21 x 3 - 36 รท 2 + 23 = 68 21 x 3 โ€“ 18 + 23 = 68 63 โ€“ 18 + 23 = 68 63 + 5 = 68

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