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Find the value of each expression below. Change any subtraction problem to an equivalent addition problem. Draw a diagram with and tiles to justify your answer.

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MrRoyalidn

Mathematical expressions are numerical expressions without an equality (=) sign.

The value of the expressions are:

  • [tex]\mathbf{5 - 7 = -2}[/tex].
  • [tex]\mathbf{-5 + (-7) = -12}[/tex].
  • [tex]\mathbf{-5 + 7 = 2}[/tex].
  • [tex]\mathbf{-5- (-7) = 2}[/tex]

The expressions are given as:

[tex]\mathbf{a.\ 5 - 7}[/tex]

[tex]\mathbf{b.\ -5 + (-7)}[/tex]

[tex]\mathbf{c.\ -5 + 7}[/tex]

[tex]\mathbf{d.\ -5 - (-7)}[/tex]

[tex]\mathbf{a.\ 5 - 7}[/tex]

Express -7 as +(-7)

So, we have:

[tex]\mathbf{5 - 7 = 5 +(-7)}[/tex]

Evaluate

[tex]\mathbf{5 - 7 = -2}[/tex]

[tex]\mathbf{b.\ -5 + (-7)}[/tex]

Evaluate

[tex]\mathbf{-5 + (-7) = -12}[/tex]

[tex]\mathbf{c.\ -5 + 7}[/tex]

Evaluate

[tex]\mathbf{-5 + 7 = 2}[/tex]

[tex]\mathbf{d.\ -5 - (-7)}[/tex]

Open bracket

[tex]\mathbf{-5- (-7) = -5 + 7}[/tex]

Evaluate

[tex]\mathbf{-5- (-7) = 2}[/tex]

See attachment for the representation of each expression

Read more about expressions at:

https://brainly.com/question/20596193

View image MrRoyal
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