Integers - Subtraction PDF

DIRECTED NUMBERS SUBTRACTING INTEGERS RULES FOR ADDING INTEGERS  CLASS WORK EVALUATE THE FOLLOWING QUESTIONS. 1. 8 + (-3) + (-35) 2. 2 + (-6) + (-5) + (10)  OPPOSITES Each negative number, is the opposite of its corresponding positive number. e.g. -3 is th...

DIRECTED NUMBERS SUBTRACTING INTEGERS RULES FOR ADDING INTEGERS  CLASS WORK EVALUATE THE FOLLOWING QUESTIONS. 1. 8 + (-3) + (-35) 2. 2 + (-6) + (-5) + (10)  OPPOSITES Each negative number, is the opposite of its corresponding positive number. e.g. -3 is the opposite of 3 When we add opposite numbers, we get 0. e.g. 5 is the opposite of -5 They have the same absolute value. We call opposite numbers, the Additive Inverse.  OPPOSITES We can write “opposite of (+5) is (-5)” like: -(+5) = -5 -(9) = -9 The subtraction symbol (-) can mean “opposite of” What is the opposite of (-18)? Opposite of (-18) is (+18). We could write this “-(-18) = (+18)”  OPPOSITES The opposite of a positive number is negative and the opposite of a negative number is positive. What is the opposite of the following: (- = - (-10) = 10) 10 +10 (+2 =- - (28) = - IMPORTAN 8) 28 28 T (-4) =4 - (-4) = +4 SUBTRACTION OF INTEGERS LET’S APPLY WHAT WE HAVE LEARNED 7−5 (-2) − 5  (-2) − (-5) Note: When we subtract a negative number, we treat it like addition.  RULE FOR SUBTRACTION There is only one rule for subtracting Integers: When subtracting a negative number, it is treated as addition. E.g. 9 – (- = 9 + = 6) 6 15 (-8) – (-5) = (-8) + = (- 5 3) WHICH ONE ARE YOU?  USUAL SURPRISE!! SOLVE THE FOLLOWING QUESTIONS: 1. 5 − 9 2. (-7) − (-2) 3. 8 − (-3) – (-7) 4. 2 + (-6) – (-10) + 1 MORE CLASSWORK!!! ACMC. BOOK 2. PAGE 56. EXERCISE 3b. # 1, 2 and 6.