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  • Natalie VanWyngaarden

    February 5, 2021 at 3:30 pm

    Seeing the comments above e.g., 5- (-3)=8 vs, -3-5=8. Perhaps we can think of direction on the number line when adding positive numbers you move to the right, when subtracting positive numbers you move to the left as the number is getting smaller because you are removing. When adding negative numbers you move left as the number of red squares is getting larger. When subtracting it goes the other direction to the right due to the zero principle. Less number of reds means you are moving to the right. Just a thought as a way of explaining the difference. Use this with the other explanation too.