Term

Definition
the answer to an addition problem (+) 


Term

Definition
the answer to a subtraction problem () 


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Definition
the answer to a multiplication problem (x, ·, or parenthesis) 


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Definition
the answer to a division problem (÷) 


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Definition
the second decimal place value (0.01) 


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Definition
the third decimal place value (0.001) 


Term
what is the mean and how do you find it? 

Definition
the average of a group of numbers (also called fair share), found by adding them all together and dividing by the amount of numbers 


Term
what is the median and how do you find it? 

Definition
the number in the middle of a list of numbers (they must be sorted from least to greatest before you find the median) 


Term

Definition
the most common number in a list of numbers 


Term
what is the variation and how do you find it? 

Definition
the difference between the largest and smallest numbers in a list (also called the range) 


Term

Definition
a prefix that means 1000 times bigger 


Term

Definition
a prefix that means 100 times smaller 


Term

Definition
a prefix that means 1000 times smaller 


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Definition
a unit for measuring mass (pennies up to books or fruit) 


Term

Definition
a unit for measuring mass (large books/large fruits and up) 


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Definition
a unit for measuring mass (items smaller than pennies) 


Term

Definition
a unit for measuring volume (anything smaller than a water bottle) 


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Definition
a unit for measuring volume (anything bigger than a water bottle) 


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Definition
a unit for measuring length (anything longer than an adult but smaller than a mile) 


Term

Definition
a unit for measuring length (comparable to miles) 


Term

Definition
a unit for measuring length (bigger than 1 or 2 inches and smaller than an adult) 


Term

Definition
a unit for measuring length (anything smaller than 1 or 2 inches) 


Term

Definition
a tool used to list all possible outcomes in a probability experiment 


Term

Definition
the likelihood of an outcome (can be expressed as a fraction or as words like likely) 


Term

Definition
a triangle with 3 congruent sides 


Term

Definition
a triangle with 2 congruent sides and 1 side thats different 


Term

Definition
a triangle with no congruent sides 


Term

Definition
a triangle with one right angle 


Term

Definition
a triangle with one obtuse angle 


Term

Definition
a triangle with three acute angles 


Term

Definition
the distance around a circle (about 3 times larger than diameter) 


Term

Definition
a line that cuts a circle in half and passes through the center of a circle (twice as large as the radius) 


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Definition
a line that extends from the center of a circle to the outside edge 


Term

Definition
the space inside of a 2D shape 


Term

Definition
the distance around a shape 


Term

Definition
the space inside a 3D shape 


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Definition


Term

Definition
(length x width) ÷ 2
[remember to divide by 2 because a right triangle is half of a rectangle] 


Term
how do you find the perimeter? 

Definition
add all the sides together 


Term

Definition
a letter that stands for an unknown amount in a number sentence 


Term

Definition
an equation or expression with a variable in it 


Term

Definition
a number sentence with an equal sign 


Term

Definition
a number sentence without an equal sign 


Term

Definition
PEMDAS (parenthesis, exponents, multiplication or division, addition or subtraction) 


Term

Definition
the first decimal place value (0.1) 


Term
volume of a rectangular prism 

Definition


Term
Should you line up decimals when doing addition and subtraction? 

Definition


Term
Do you line up decimals when you multiply? 

Definition


Term

Definition
the difference between the highest and lowest number in a set (synonym: variation) 


Term
How do you find the mean? 

Definition
Add all the numbers then divide by how many numbers there are. 


Term
How do you find the median? 

Definition
Put the numbers in order, then pick the number in the middle (if there are 2 in the middle, add them and divide by 2) 


Term
How do you find the mode? 

Definition
Look for the number that appears the most. 


Term

Definition
A synonym for mean; this is the amount one person gets when everyone shares their total equally with everyone else. 


Term
What is 1/2 as a decimal? 

Definition


Term
What is 1/4 as a decimal? 

Definition


Term
What is 3/4 as a decimal? 

Definition


Term
What is 1/5 as a decimal? 

Definition


Term
What is 3/5 as a decimal? 

Definition


Term

Definition


Term
What is 3/8 as a decimal? 

Definition


Term
What is 5/8 as a decimal? 

Definition


Term
What is 7/8 as a decimal? 

Definition


Term
What should you create to help you on probability questions? 

Definition


Term
How do you show your work for adding and subtracting fractions? 

Definition
A fraction Tchart or WholeFraction (WF) chart. 


Term
How do you show your work for solving Order of Operations expressions? 

Definition
PEMDAS Pyramid (or pizza, or pie, or whatever you want to call it) 


Term
How can you show multiplication with a number and a variable? 

Definition
Put them right next to each other (like 5 times n could be shown as 5n). 


Term
What does it mean if a number is right next to parenthesis? Example: 7(8+5) 

Definition
It means multiply that number with whatever is inside the parenthesis. 


Term
What does the line in the middle of a fraction really mean? 

Definition
It means "divided by". Every fraction is actually a division problem. 


Term

Definition
A number with only two factors 


Term

Definition
A number with more than two factors 


Term
This number is neither prime nor composite 

Definition


Term
What is the strategy to identify a prime or composite number (this works up to 100)? 

Definition
4question strategy or 100 chart. 4 question strategy:Ask yourself if it's a multiple of 2, 3, 5, or 7? If you say "no" 4 times, it's prime. If you say "yes" to any of those questions, it's composite.
On a 100 chart, cross off 1, then circle 2, 3, 5, and 7. Shade in all the multiples of 2, 3, 5, and 7 (not counting those numbers). Circle everything that's not shaded or crossed out. You'll have the composite numbers shaded in, the prime numbers circled, and the special number (1) crossed out. 


Term
What should you do to help you on computation questions? 

Definition
Estimate first! Estimation will help you see if your answer is reasonable. 


Term
How do you check your work on computation questions? 

Definition
You can check your work by doing the opposite operation. For example, you can check multiplication by doing division. You can check subtraction by doing addition. 


Term

Definition
an angle less than 90 degrees 


Term

Definition
an angle equal to 90 degrees 


Term

Definition
an angle more than 90 degrees 


Term

Definition


Term

Definition
a triangle with three acute angles 


Term

Definition
a triangle with one obtuse angle 


Term

Definition
a triangle with one right angle 


Term

Definition
a triangle where no sides are congruent 


Term

Definition
a triangle with three congruent sides 


Term

Definition
a triangle with two congruent sides and one side that's different 


Term

Definition


Term

Definition
By sides: Equilateral
By angles: Acute 


Term

Definition
By sides: Isosceles
By angles: Obtuse 


Term

Definition


Term

Definition
By sides: Scalene
By angles: Right 


Term

Definition


Term

Definition
The distance around a circle. 


Term

Definition
A line that touches the outside edge of a circle at 2 points. 


Term

Definition
The longest chord in a circle; a line that cuts the circle in half; a chord that passes through the center of a circle. 


Term

Definition
A line that extends from the center of a circle to the outside edge. 


Term
How are the circumference and diameter related? 

Definition
The circumference is about 3 times larger than the diameter. 


Term
How are the diameter and radius related? 

Definition
The diameter is twice the size of the radius; the radius is half the size of the diameter. 


Term
How are the radius and circumference related? 

Definition
Since circumference is about 3 times larger than the diameter and the diameter is twice as big as the radius, the circumference is about 6 times bigger than the radius. 


Term
What is 1/20 as a decimal? 

Definition


Term
What is 19/20 as a decimal? 

Definition


Term
What is 1/25 as a decimal? 

Definition


Term
What is 24/25 as a decimal? 

Definition


Term
What is 1/50 as a decimal? 

Definition


Term
Translation (a geometric transformation) 

Definition


Term
Rotation (a geometric transformation) 

Definition


Term
Reflection (a geometric transformation) 

Definition


Term
What's the sum of the angles in a triangle? 

Definition


Term
What's the fundamental counting principle? 

Definition
It says that in a probability experiment you can determine how many outcomes are in the sample space by multiplying all of the various categories together. This only works if you are picking 1 from each category. 

