Problem preview
MF.SN.3 Challenge MF-025-A12-V01

Multiply and divide signed numbers and interpret sign patterns correctly.

Recognize equivalent signed multiplication and division models

Problem

Identify exactly \(\text{all}~\text{representations}\) with the same multiplication meaning as \((-4)(3)\). Include \(\text{every}~\text{representation}\) that models \(3~\text{groups}~\text{of}~-4\), not merely an expression with the same final value. Report the complete set of labels.

Target: \((-4)(3)\)

Representations:
A. \(3~\text{groups}~\text{of}~-4\)
B. \((-4)~+~(-4)~+~(-4)\)
C. \((-3)(4)\)
D. \(0~-~4~-~4~-~4\)
E. \(12~\div~(-3)\)
F. a total change of \(-12\) split equally among \(3~\text{groups}\)
G. \((-4)~+~3\)
H. A temperature drops \(4^{\circ}~\text{each}~\text{hour}\) for \(3~\text{hours}\)

Big Picture

What this problem is really about

Translate the target into its precise multiplication meaning: three groups of negative four. For every representation, identify the operation, number of groups, and signed amount per group before calculating anything. Keep only models that preserve all three features; an expression with the same total can still describe different grouping or a division relationship.

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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