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How to subtract integers
Why change to addition problem Subtraction is the opposite of addition So we make things opposite
Step 1 Only make things opposite after the subtraction Example -4 – 9 would read negative four subtract negative nine So, we only change subtract negative nine
Step 2 How do we change them We know that taking away a negative thing is a positive situation So, -(-3) will be + (+3) We changed subtraction to adding and negative to positive
You try Only change them to addition problems 6- (-5) 6 +(+5) -10-(-4) -10 +(+4)
Other type When we take way a positive thing We know it is a negative situation So 7 – 19 we change subtraction to addition and positive 19 to -19
You try Only change to addition problem (-10) (-20)
Now we have addition problem Follow the same steps when we added integers What do we have more of Answer will be that sign Signs same or different Same add, different subtract
You try whole process –(-6) -3 +(6) more positive signs different, subtract -3 +(6)= (-11) More negatives Signs same, add -7+(-11)=-18
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