Every subtraction problem can be rewritten as an addition problem.
True or not?
Give Examples.
Why is is true or why is it not true? (Think about the chips)
Delaney's
-4+3=-1
-1-3=-4
-Moves the order
-different answers
-Negative answers
-Fact family
Flynn's
3-1=2
3+(-1)=2
Jackson's
7-6=1
7+(-6)=1
Jack's
7-5=2
7+(-5)=2
-Same abs value numbers
Adding is easier than subtracting.
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