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MF.SN.3 Challenge MF-025-A13-V03

Multiply and divide signed numbers and interpret sign patterns correctly.

Choose a smart strategy for signed multiplication and division

Problem

A temperature changes by \(-4.5^{\circ}~\text{per}~\text{hour}\) for \(6~\text{hours}\). Consider these strategies: A, model repeated signed change; B, drop the negative; C, use the wrong sign rule; D, add instead. Choose the strategy that works, then give the total change.

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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
Choose a smart strategy for signed multiplication and division