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Which expression is equivalent to
99.7-(-57.9) ?

99.7-57.9

57.9-99.7

-57.9-99.7

99.7+57.9

Which expression is equivalent to $99.7-(-57.9)$ ? $\newline$ $99.7-57.9$ $\newline$ $57.9-99.7$ $\newline$ $-57.9-99.7$ $\newline$ $99.7+57.9$

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Add and subtract decimals

Full solution

Q. Which expression is equivalent to

99.7-(-57.9)

?

\newline

99.7-57.9

\newline

57.9-99.7

\newline

-57.9-99.7

\newline

99.7+57.9

Understand the problem: Understand the problem. $\newline$ We need to find an expression equivalent to $99.7 - (-57.9)$ . This involves understanding how to handle subtraction of a negative number.
Apply the rule: Apply the rule for subtracting a negative number. $\newline$ Subtracting a negative number is the same as adding its positive counterpart. Therefore, $99.7 - (-57.9)$ is equivalent to $99.7 + 57.9$ .
Check the given options: Check the given options to find the equivalent expression. $\newline$ We have determined that $99.7 - (-57.9)$ is equivalent to $99.7 + 57.9$ . Now we need to check the given options to see which one matches our result. $\newline$ Option $1$ : $99.7 - 57.9$ (This is not equivalent because it represents subtraction, not addition.) $\newline$ Option $2$ : $57.9 - 99.7$ (This is not equivalent because it represents subtraction in the reverse order.) $\newline$ Option $3$ : $-57.9 - 99.7$ (This is not equivalent because it represents adding a negative to a negative.) $\newline$ Option $4$ : $99.7 + 57.9$ (This is equivalent because it correctly represents adding the positive counterpart of $-57.9$ to $99.7$ .)

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