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PEMDAS
Adding Rational Numbers
Subtracting Rational Numbers
Multiplying Rational Numbers
Dividing Rational Numbers
100

3.3 + (-2) – (-0.5).

1.8 or 1 and 4/5

100
3.15 + 2.25
5.40
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

(-2)(7)(1/2)

-7

200
0.38 + (-1.2)
-0.82
200
- 4/13 - 8/13
-12/13
200
-3.2 x 5
-16
200
-20 divided by 0.5
-40
300

(-0.75) ÷7/10

-1 and 1/14

300
9/25 + (-17/25)
-8/25
300
-0.06 - (-0.86)
0.8
300
-1/6 (-2/3)
1/9
300
-15 divided by -5/8
24
400

6[-3+2-(-1/10)]

-5 and 2/5

400

-5/4 + 1/12

-1 1/6

400
-5/12 - (-2/24)
-1/3
400
-2.57 (-.5)
1.285
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

  1. Alex buys a soccer net that is 5 and 1/2 feet long. The cost of the soccer net is $1.00 per foot, including tax. What is the total cost, in dollars, of Alex’s soccer net? 

$5.50

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