Adding And Subtracting Fractions

Adding and Subtracting Fractions Criss-Cross Smiley Face Method by Mr. Hoover Click to begin

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Click to continue Skills Review

Skills Review ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Click to continue

Skills Review ,[object Object],[object Object],[object Object],0 1 2 3 4 5 6 8 9 10 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 7

Skills Review ,[object Object],[object Object],[object Object],0 1 2 7 4 5 6 8 9 10 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 3

Skills Review ,[object Object],[object Object],[object Object],0 1 2 3 4 5 6 8 9 10 -1 -2 7 -4 -5 -6 -7 -8 -9 -10 -3

Skills Review ,[object Object],[object Object],[object Object],0 1 2 7 4 5 6 8 9 10 -1 -2 -3 -4 -5 -6 3 -8 -9 -10 -7

[object Object],[object Object]

Criss-Cross Smiley Face Method Click to continue 2 + 3 = 5 4 Step 1: Criss – multiply 2 x 4 and bring down + sign Step 2: Cross – multiply 3 x 5 Step 3: Smiley Face – multiply 5 x 4 Step 4: Solve and simplify if needed. Leave fraction as an improper fraction. 2 x 4 8 + 20 5 x 4 3 x 5 15 23 = 20

Criss-Cross Smiley Face Method Click to continue 1 - 2 = 6 3 Step 1: Criss – multiply 1 x 3 and bring down - sign Step 2: Cross – multiply 2 x 6 Step 3: Smiley Face – multiply 6 x 3 Step 4: Solve and simplify if needed. Leave fraction as an improper fraction. 1 x 3 3 - 18 6 x 3 2 x 6 12 -9 = = 18 -1 2

Practice Click on the correct answer. Leave fraction as an improper fraction. 1 + 3 = 5 4 OK, let’s practice what we just learned. = ? ? ? ? 4 9 4 20 19 9 19 20

Practice Click on the correct answer. Leave fraction as an improper fraction. 2 - 2 = 3 5 = ? ? ? ? 0 15 4 15 0 -2 -4 15

Practice Click on the correct answer. Leave fraction as an improper fraction. 6 + 4 = 7 3 = ? ? ? ? 24 21 46 21 1 1 24 10

Practice Click on the correct answer. Leave fraction as an improper fraction. 7 - 1 = 5 6 = ? ? ? ? 6 11 47 11 37 30 1 5

[object Object],[object Object],THE END

Adding And Subtracting Fractions

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