GOZUNTA
Try it now
Problem preview
MF.SN.3 Challenge MF-025-A12-V03

Multiply and divide signed numbers and interpret sign patterns correctly.

Recognize equivalent signed multiplication and division models

Problem

Represent a scuba diver rising \(2.5~\text{meters}~\text{each}~\text{minute}\) for \(4~\text{minutes}\). Identify exactly \(\text{all}~\text{representations}\) that preserve this repeated positive-change situation, not merely its final amount. Report the complete set of labels.

Target situation: A scuba diver rises \(2.5~\text{meters}~\text{each}~\text{minute}\) for \(4~\text{minutes}\).

Representations:
A. \((-2.5)(4)\)
B. \(4\) groups of \(+2.5\)
C. \((+2.5)~+~(+2.5)~+~(+2.5)~+~(+2.5)\)
D. \((+2.5)(4)\)
E. A diver descends \(2.5~\text{meters}~\text{each}~\text{minute}\) for \(4~\text{minutes}\)
F. \(10~\div~4\)
G. the change is opposite to \((-2.5)(4)\)
H. \(2.5~-~4\)

Target-and-options organizer for a signed change context. The target box states that a scuba diver rises 2.5 meters each minute for 4 minutes. Eight unmarked option cards labeled A through H mix multiplication, repeated addition, opposite-change language, division, and subtraction. Open full size
Inside Gozunta

Turn the preview into practice.

More than a preview

Gozunta lets you study this problem—and more than 10,000 others.

Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.

Discover Gozunta Try it now
Four variants of this problem type
Curriculum context
Standard
MF.SN.3
Category
Signed Numbers
Domain
Operations
Objective
Multiply and divide signed numbers and interpret sign patterns correctly.
Problem type
Recognize equivalent signed multiplication and division models