WeBWorK using host: https://webwork.pcc.edu, format: simple, seed: 11, course: orcca

In each expression, how many negative signs and subtraction signs are there?

$1-9$
has
negative signs and
subtraction signs.

$-12+(-50)$
has
negative signs and
subtraction signs.

$\dfrac{-13-(-15)-17}{23-4}$
has
negative signs and
subtraction signs.

Solution

$1-9$ has zero negative signs and one subtraction sign.

$-12+(-50)$ has two negative signs and zero subtraction signs.

$\dfrac{-13-(-15)-17}{23-4}$ has two negative signs and three subtraction signs.

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