Example Problem - Adding and Subtracting Positive and Negative numbers
-6 + 2
Step 1a - What is the sign of the left term?
Negative Positive
Step 1b - What is the sign of the right term?
Negative Positive
Step 1c - Are those the same signs or different signs?
Same signs, so we will add the values Different signs, so we will subtract the values
Step 2a - Which number is bigger?
The first number, - 6 The second number, 2
Step 2b - Subtract the values (easier with the bigger number in front or on top). What is 6 - 2 ?
4 10
Step 3 - Take the sign of the bigger number. What is our final answer?
4 -4
That is not correct. We said earlier that our bigger number was -6. Because -6 is negative, our answer will be negative.
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Negative Positive
Step 1b - What is the sign of the right term?
Negative Positive
Step 1c - Are those the same signs or different signs?
Same signs, so we will add the values Different signs, so we will subtract the values
Step 2a - Which number is bigger?
The first number, - 6 The second number, 2
Step 2b - Subtract the values (easier with the bigger number in front or on top). What is 6 - 2 ?
4 10
Step 3 - Take the sign of the bigger number. What is our final answer?
4 -4
That is not correct. We said earlier that our bigger number was -6. Because -6 is negative, our answer will be negative.
Back