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Which expression is equivalent to
30.4+(-40.4) ?

30.4-40.4

40.4-30.4

-40.4+(-30.4)

-40.4-30.4

Which expression is equivalent to $30.4+(-40.4)$ ? $\newline$ $30.4-40.4$ $\newline$ $40.4-30.4$ $\newline$ $-40.4+(-30.4)$ $\newline$ $-40.4-30.4$

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Add and subtract positive and negative decimals

Full solution

Q. Which expression is equivalent to

30.4+(-40.4)

?

\newline

30.4-40.4

\newline

40.4-30.4

\newline

-40.4+(-30.4)

\newline

-40.4-30.4

Find Equivalent Expression: We need to find an expression that is equivalent to adding a positive number to a negative number of greater absolute value. The expression $30.4+(-40.4)$ can be simplified by combining the positive and negative numbers. $\newline$ Calculation: $30.4 + (-40.4) = 30.4 - 40.4$
Combine Positive and Negative Numbers: Now, we need to subtract $40.4$ from $30.4$ . Since $40.4$ is greater than $30.4$ , the result will be negative. $\newline$ Calculation: $30.4 - 40.4 = -10$
Perform Subtraction Calculation: The correct expression that represents the calculation we just performed is $30.4 - 40.4$ , which equals $-10$ .

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