Subtraction
Addition
Mystery
Investigation
100

3/4 - 2/4 =

Bonus: Make a Model

1/4

100

2/4 + 1/4 =

Bonus: Make a Model!

3/4

100

3/4 - x/4 =2/4

1/4

100

Stacy is measuring milk to make pancake batter. The recipe calls for 3/4 of a jug of milk. She has 1/4 of a jug now.

How much more milk does she need? 

She needs 2/4 of a jug of milk. 

200

8/12 - 4/12 = 

4/12

200

5/15 + 6/15 = 

11/15

200

Correct or Incorrect?

2/4 + 1/3 = 3/4

Incorrect 


200

Brandon is baking his favorite dessert. The recipe calls 5/10 of a stick of butter, but he wants to double the recipe.

How much butter will Brandon need? 

10/10

300

3/10 - 1/10 =

2/10

300

4/38 + 16/38 

20/38

300

11/15 -  x/15 = 9/15

2/15

300

Fred collected 5/12 buckets of apples. Taylor collected 4/12 buckets of apples. Amy collected 1/6 buckets of apples. 

How many buckets did Fred and Taylor collect altogether? 

Fred and Taylor collected 9/12 buckets of apples. 

400

6/9 - 5/9

1/9

400

7/14 + 5/14 =

Bonus: Can you simplify? 

12/14 

Simplified: 6/7


400

x/8 + 4/8 = 8/8

4/8

400

John is allowed to play video games for 4/5 hours each day. He has already played for 2/5 hours today.

What fraction of an hour does John have left to play video games today?

John has 2/5 of an hour left to play.

500

9/25 - 5/25

4/25

500

7/9 + 2/9 =

9/9 

What did we make?

500

Correct or Incorrect? 

4/8 + 2/8 = 6/16

Incorrect

500

Lincoln wants to mix 3/8 of a liter of red paint with 7/8 of a liter of blue paint to make purple paint.

How many liters of purple paint will Lincoln make by mixing the two colors?

10/8 liters