Because Why Not?
Adding Rational Numbers
Subtracting Rational Numbers
Multiplying Rational Numbers
Dividing Rational Numbers
100

The fraction which is equivalent to -.25

- 1/4

100

1/5 + 3/10

5/10 = 1/2

100
8/11 - 3/11
5/11
100

5(1/3)

1 and 2/3

100
1/4 divided by 3/8
2/3
200

What are fractions actually doing?

dividing

200

3/7 + (-5/14)

1/14

200
- 4/13 - 8/13
-12/13
200

-3 1/5 x 5

-16

200
-20 divided by 0.5
-40
300

When would you use the "Stay Change Flip" method?

When dividing fractions

300

9/50 + (-17/25)

-25/50 = -1/2

300

-2/12 - (-1/6)

0

300
-1/6 (-2/3)
1/9
300
-15 divided by -5/8
24
400

Define, Reciprocal

The flip of a fraction

400

-5/4 + 1/12

-1 1/6

400
-5/12 - (-2/24)
-1/3
400

-3/7 x -5/2

15/14 = 1 1/14

400
Emma bought 2 and 1/2 yards of ribbon to make bows for 4 of her friends. How much yard will she use for each ribbon?
5/8 yards
500

What are Tuesday's and Wednesday's spirit days this week?

Christmas Out and Ugly Sweater

500
To make a small amount of play dough, you can mix 1 cup of flour, 1/2 cup of salt and 1/2 cup of water. What is the total amount of ingredients added to make the play dough?
2 cups
500

The snowfall in Rochester, NY in the winter of 1999-2000 was 91.5 inches. Normal snowfall is about 76 inches per winter. How much more snow fell in the winter of 1999-2000 than is normal?

15.5 inches

500
Joe had a breakfast party. He invited four of his best friends. Each friend brought 3.4 cups of coffee. How much coffee did they all bring together?
13.6 cups
500
List all the properties for adding, subtracting, dividing, and multiplying positives and negatives?
-Add: Same sign? Yes: Add, keep sign OR No: Subtract, sign of biggest number. -Subtract: Keep, change, opposite and use addition rules -Multiply/Divide: Same sign: Answer is positive Different sign: Answer is negative
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