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Error analysis: signed numbers — Homework
Find the error in each worked solution, name the rule that was broken, and give the correct answer.
- 1.Worked solution: "-9 - (-4) = -13."
- 2.Worked solution: "-5 x (-6) = -30."
- 3.Worked solution: "3 + 4 x (-5) solved as (3 + 4) x (-5) = -35."
- 4.Worked solution: "-45 / (-9) = -5."
- 5.Write your own worked solution with a deliberate sign or order-of-operations error, then explain the fix.
🌲 Homeschool of the FutureSeventh Grade · Math · week 17 homework