"WHY"
in 7 - (-3) becoming 7 + (+3)
*****************************
LINK: Back to Contents
Tuesday, September 6, 2011
Why SUBTRACTION becomes ADDING opposites
At least once in an Algebra Class the students shouldsee the
"WHY"
in 7 - (-3) becoming 7 + (+3)
*****************************
LINK: Back to Contents
"WHY"
in 7 - (-3) becoming 7 + (+3)
*****************************
LINK: Back to Contents
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