Integer Slide Rule
In this integer slide rule worksheet, students utilize a slide rule to determine solutions to addition and subtraction problems with integers.
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Multiply a Positive Integer by a Negative Integer by Thinking About Equal Groups
The rule says that the product of a positive and negative is always negative, but how do you show that? This video demonstrates how we take a negative number and multiply it by a positive to get more groups of negatives. A product box is...
5 mins 5th - 8th Math CCSS: Designed