Order of Operations
What is the order of operations?
1. Grouping Symbols
2. Exponents
3. Multiplication & Division
4. Addition & Subtraction
What is the Prime Factorization of 990 ?
2xx3xx3xx5xx11
Before you add or subtract fractions, what must you make sure of first?
The fractions must have a common denominator.
Before multiplying fractions what must you do first?
Turn any mixed number into an improper fraction.
What is the process for dividing fractions?
Mixed numbers must be turned into improper fractions.
Then
Bring down, flip, flip.
Evaluate: 7+4×2^2
23
What is the Greatest Common Factor (GCF) of 60 & 75 ?
15
Evaluate: 1/3+3/4
1 1/12
Find 8/9×3/4
2/3
Find 87/90 ÷3/5
1 11/18
Evaluate: (49-5^2) ÷2^3
3
What is the Least Common Multiple (LCM) of 36 & 60 ?
180
Evaluate: 7.82-3.209
4.611
Find 2.3275*9.4
21.8785
Find 37.7 ÷13
2.9
Evaluate: 12(1.4 + 3.6) − 24 ÷ 3
52
You have 12 cans of lemonade, 54 bottles of water, and 84 cups of punch to put on refreshment tables. Each table must be identical. What is the greatest number of refreshment tables you can set up using every beverage? And how many of each beverage will each table have?
6 tables with 2 lemonade, 9 water, and 12 cups of punch
Evaluate: 1/2+.591-1/3
.757bar6
Find 2 1/6 ×4 2/5
9 8/15
Find 6 2/9 ÷ 5 5/6
1 1/15
A family buys 3 dinners at $9 each, 2 kid’s meals at $4 each, and 4 desserts at $3 each. After using a $10 off coupon, how much do they owe?
$37
Two model trains share a station but run on separate tracks. One train passes the station every 8 minutes. The other train passes the station every 14 minutes. Both trains just passed the station. After how many minutes will both trains pass the station at the same time again?
56 minutes
A field hockey field is rectangular. Its width is 54.88 meters, and its perimeter is 289.76 meters. Find the length of the field.
90 meters
The weight of an object on the Moon is about 0.167 of its weight on Earth. How much does a 210-pound astronaut weigh on the Moon?
35.07 pounds
A bag contains 45 cups of dog food. Your dog eats 2 1/3 cups of dog food each day. Is there enough food to last 3 weeks? Explain.