Which expression is equivalent to 4.25-(-8)? Choose 1 answer: (A) -8+(-4.25) (B) 4.25+(-8) (c) 4.25+8 (D) 8-4.25

Understand subtraction of negative numbers: Understand the operation of subtracting a negative number. Subtracting a negative number is the same as adding its positive counterpart. Calculation: 4.25 - (-8) = 4.25 + 8Identify equivalent expression: Identify the equivalent expression. The equivalent expression must represent the same operation as in Step 1. (A) -8 + (-4.25) is not equivalent because it represents adding a negative number to another negative number. (B) 4.25 + (-8) is not equivalent because it represents adding a negative number to a positive number. (C) 4.25 + 8 is equivalent because it represents adding the positive counterpart of -8 to 4.25, which is the same as subtracting -8 from 4.25. (D) 8 - 4.25 is not equivalent because it represents subtracting a positive number from another positive number, which is a different operation.

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Math Problems

Grade 7

Identify equivalent linear expressions I

Full solution

Q. Which expression is equivalent to

4.25-(-8) ?

\newline

Choose

1

answer:

\newline

(A)

-8+(-4.25)

\newline

(B)

4.25+(-8)

\newline

(C)

4.25+8

\newline

(D)

8-4.25

Understand subtraction of negative numbers: Understand the operation of subtracting a negative number. Subtracting a negative number is the same as adding its positive counterpart. Calculation: $4.25 - (-8) = 4.25 + 8$
Identify equivalent expression: Identify the equivalent expression. $\newline$ The equivalent expression must represent the same operation as in Step $1$ . $\newline$ (A) $-8 + (-4.25)$ is not equivalent because it represents adding a negative number to another negative number. $\newline$ (B) $4.25 + (-8)$ is not equivalent because it represents adding a negative number to a positive number. $\newline$ (C) $4.25 + 8$ is equivalent because it represents adding the positive counterpart of $-8$ to $4.25$ , which is the same as subtracting $-8$ from $4.25$ . $\newline$ (D) $8 - 4.25$ is not equivalent because it represents subtracting a positive number from another positive number, which is a different operation.