Dim my eyes if they should compromise our fulcrum
if wants and needs divide me
I might as well be gone.
Shine on forever.
Shine on benevolent sun.
Wednesday, March 18, 2009
Integers: Chips
Use chips to model addition and subtraction of positives and negatives. Explore the effect of zero pairs. See how to use zero pairs to help special cases of addition and subtraction.
Use chips to model addition and subtraction of positives and negatives. Explore the effect of zero pairs. See how to use zero pairs to help special cases of addition and subtraction.
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