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MF.SN.2 Challenge MF-024-A12-V02

Add and subtract signed numbers and explain the meaning of the sign changes.

Recognize equivalent signed-operation forms

Problem

A submarine is at \(-7~\text{meters}\) and rises \(4~\text{meters}\). Identify every candidate that starts at \(-7\), represents the same rise, and ends at the same value.

A. \(-7~+~4\)
B. \(-7~-~(-4)\)
C. Start at \(-7\) and move \(4~\text{units}\) right.
D. Start at \(-7\) and move \(4~\text{units}\) left.
E. \(4~+~(-7)\)
F. \(-7~-~4\)
G. Start at \(4\) and move \(7~\text{units}\) left.
H. \(-7~+~(-4)\)

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Four variants of this problem type
Curriculum context
Standard
MF.SN.2
Category
Signed Numbers
Domain
Operations
Objective
Add and subtract signed numbers and explain the meaning of the sign changes.
Problem type
Recognize equivalent signed-operation forms