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Which of the following is a correct interpretation of the expression
-2-7 ?
Choose 1 answer:
A Start at -2 on the number line and move 7 to the left.
B Start at -2 on the number line and move 7 to the right.
(C) Start at 7 on the number line and move 2 to the left.
D Start at 7 on the number line and move 2 to the right.

Which of the following is a correct interpretation of the expression $-2-7$ ? $\newline$ Choose $1$ answer: $\newline$ (A) Start at $-2$ on the number line and move $7$ to the left. $\newline$ (B) Start at $-2$ on the number line and move $7$ to the right. $\newline$ (C) Start at $7$ on the number line and move $2$ to the left. $\newline$ (D) Start at $7$ on the number line and move $2$ to the right.

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Quantities that combine to zero: word problems

Full solution

Q. Which of the following is a correct interpretation of the expression

-2-7

?

\newline

Choose

1

answer:

\newline

(A) Start at

-2

on the number line and move

7

to the left.

\newline

(B) Start at

-2

on the number line and move

7

to the right.

\newline

(C) Start at

7

on the number line and move

2

to the left.

\newline

(D) Start at

7

on the number line and move

2

to the right.

Understand subtraction operation: To interpret the expression $-2 - 7$ , we need to understand that the expression represents a subtraction operation on the number line.
Move left on number line: Starting at $-2$ on the number line, subtracting $7$ means moving $7$ units to the left because subtracting a positive number moves us to the left on the number line.
Interpret $-2 - 7$ : Therefore, the correct interpretation of the expression $-2 - 7$ is to start at $-2$ on the number line and move $7$ units to the left.

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\newline

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