Adding and Subtracting Fractions Smiley Face Method McRee

Integers Review Adding and Subtracting Positive and Negative Numbers Signs are the SAME: find the SUM. Keep the sign. 2 + 3 = -2 – 3 = - 2 + - 3 = Signs are DIFFERENT. Find the DIFFERENCE. Take sign from larger number (TUG OF WAR) 8 – 5 = 5 – 8 =

Integer Review + - - Multiplying Positive and Negative Numbers Signs are the SAME. Answer will be positive 4 (5) = - 4 (- 5) = Signs are DIFFERENT. Answer will be negative 4 (-5) = -4 ( 5) = + - -

Practice These: 5 + 2 = 5 (- 2) = 5 - 2 = - 5 + - 2= - 5(- 2)= - 5 + 2 5 - 2 = - 5 – (- 2)= - 5 – 2 = 5 (- 2) = - 5(- 2)= - 50 2

Smiley Face Method 2 + 3 5 4 Step 1: Smile: Multiply denominators Step 2: Criss: Start on left side. Multiply across Step 3: Cross: Move to the right side and multiply across Step 4 : Drop: Bring down the operation Step 5: Simplify if needed. Leave fraction improper fraction

Smiley Face Method 2 - 1 3 6 Step 1: Smile: Multiply denominators Step 2: Criss: Start on left side. Multiply across Step 3: Cross: Move to the right side and multiply across Step 4 : Drop: Bring down the operation Step 5: Simplify if needed. Leave fraction improper fraction

Let’s Practice 1 + 3 5 4

Let’s Practice 2 - 2 3 5

Let’s Practice 4 + 6 3 7

Let’s Practice 7 - 1 5 6

Video on Method Watch and practice along with video. All questions from the video should be written and solved in your notebook. Smiley Face Method