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Direction: Correct the following equations by interchanging the two signs.

  1. 5 x 15 ÷ 7 - 20 + 4 = 77
    1. - and +
    2. x and ÷
    3. + and ÷
    4. + and x
    5. - and ÷
Correct Option: C

If we interchanges signs '+' and '÷', then the equation changes into
5 x 15 + 7 - 20 ÷ 4 = 5 x 15 + 7 - 5 = 77


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