Vocab
When numbers are whole and have opposite signs
What are integers?
-12 + 5 = ?
-7
-15/ 2.5
-6
3 - (-5)
8
Jenna has 10 marbles and she wants to give a set of 2 marbles to each of her 5 friends. However, she has lost 2 marbles. Does she have enough ? Why?
No she does not because 10-2 = 8 and she wants to give 2 for 5 friends which is 10 so she needs to get 2 more marbles.
A number that can be written as a ratio of two integers
What is a rational number?
2/9 + 1/9 simplified
1/3
1/3 divided by 2
1/6
2.5-1.75
0.75
Jill has 5 cups of chocolate chips. She divides the chocolate chips into 1/3 cup servings. How many servings does she have?
15 servings
The smallest number that can be divided into a set of numbers using a prime factorization tree or a T chart.
1/3 + 2/5
11/15
-3 * 1/8
-3/8
-6.5 - (-1/2)
-5.3
Zoey had 1/9 of a pound of sugar. She split the sugar equally into 4 bowls. What fraction of a pound of sugar was in each bowl?
1/36 lb of sugar
When taking the square root of a number, this symbol is used
What is a radical?
-2/3 + 1/2
-7/6 or -1 1/6
0.75 * 3 5/6
2.875
-4/3 - (-5/6)
-1/2
Corey skateboarded 3 1/5 miles each week for 1 1/4 weeks. How many miles did Corey skateboard?
4 miles
This is the method used when writing very large numbers often expressing with an exponent to determine the number of zeros or significant numbers behind
What is Scientific Notation
3 2/3 + 3/4
4 5/12
- 1 2/5 * 14.25
-19.95
3 2/3 - 3/4
35/12
Your recipe calls for 3/4 cups of flour. However, you only have a tablespoon as a tool to measure the flour. Each tablespoon equals 1/16 of a cup. How many tablespoons do you need to make 3/4 cup of flour?
12 tablespoons