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1-62.

Add or subtract.  Remember to line up the decimal point.   Homework Help ✎

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  1. Line the problem up vertically.

    Add a zero and subtract.

    Continue subtracting going from right to left.

    Borrow 1 from the 3. Then subtract 6 from 11.

    Borrow again.

  2.   

    Add from right to left, carrying when necessary. Now finish the problem.

  3. See part (a).