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Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are no double negatives in this problem. -8+3 Double.

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Presentation on theme: "Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are no double negatives in this problem. -8+3 Double."— Presentation transcript:

1 Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are no double negatives in this problem. -8+3 Double negatives are negative signs right next to each other. Step 2: Check to see if the signs of the numbers are alike or different If the signs are ALIKE, ADDIf the signs are DIFFERENT, SUBRACT On this problem, the 8 is NEGATIVE and the 3 is POSITIVE Since the signs are DIFFERENT, we SUBRACT Step 3: Perform your Operation On this problem, we will be SUBTRACTING. Step 4: Determine the Sign of your Answer Subtract 8 and 3 which equals 5 Since the greater number is negative (8), the final answer is negative. -8+3= -5 Final Answer -5

2 Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are no double negatives in this problem. -12 - 6 Double negatives are negative signs right next to each other. Step 2: Check to see if the signs of the numbers are alike or different If the signs are ALIKE, ADDIf the signs are DIFFERENT, SUBRACT On this problem, the 12 is NEGATIVE and the 6 is NEGATIVE Since the signs are ALIKE, we ADD Step 3: Perform your Operation On this problem, we will be ADDING. Step 4: Determine the Sign of your Answer Add 12 and 6 which equals 18 Since the greater number is negative (12), the final answer is negative. -12-6= -18 Final Answer -18

3 Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are no double negatives in this problem. -7 +(-10) Double negatives are negative signs right next to each other. Step 2: Check to see if the signs of the numbers are alike or different If the signs are ALIKE, ADDIf the signs are DIFFERENT, SUBRACT On this problem, the 7 is NEGATIVE and the 10 is NEGATIVE Since the signs are ALIKE, we ADD Step 3: Perform your Operation On this problem, we will be ADDING. Step 4: Determine the Sign of your Answer Add 7 and 10 which equals 17 Since the greater number is negative (10), the final answer is negative. -7 +(-10)= -17 Final Answer -17

4 Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are double negatives in this problem. -5-(-12) Double negatives are negative signs right next to each other. Step 2: Check to see if the signs of the numbers are alike or different If the signs are ALIKE, ADDIf the signs are DIFFERENT, SUBRACT On this problem, the 5 is NEGATIVE and the 12 is POSITIVE Since the signs are DIFFERENT, we SUBRACT Step 3: Perform your Operation On this problem, we will be SUBTRACTING. Step 4: Determine the Sign of your Answer Subtract 12and 5 which equals 7 Since the greater number is positive (12), the final answer is positive. -5 +12= 7 Final Answer 7 When you see two negative signs side by side, you can imagine that the two pieces of the addition sign have blown apart. Put the two negative signs back together to form an addition sign. -5 + 12

5 Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are double negatives in this problem. 20-(-7) Double negatives are negative signs right next to each other. Step 2: Check to see if the signs of the numbers are alike or different If the signs are ALIKE, ADD If the signs are DIFFERENT, SUBRACT On this problem, the 20 is POSITIVE and the 7 is POSITIVE Since the signs are ALIKE, we ADD Step 3: Perform your Operation On this problem, we will be ADDING. Step 4: Determine the Sign of your Answer Add 20 and 7 which equals 27 Since the greater number is positive (20), the final answer is postive. 20 +7= 27 Final Answer 27 When you see two negative signs side by side, you can imagine that the two pieces of the addition sign have blown apart. Put the two negative signs back together to form an addition sign. 20 + 7

6 Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are no double negatives in this problem. 5 - 11 Double negatives are negative signs right next to each other. Step 2: Check to see if the signs of the numbers are alike or different If the signs are ALIKE, ADDIf the signs are DIFFERENT, SUBRACT On this problem, the 5 is POSITIVE and the 11 is NEGATIVE Since the signs are DIFFERENT, we SUBTRACT Step 3: Perform your Operation On this problem, we will be SUBTRACTING. Step 4: Determine the Sign of your Answer Subtract 11 and 5 which equals 6 Since the greater number is negative (11), the final answer is negative. 5 - 11= -6 Final Answer -6


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