Term
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Definition
| the answer to an addition problem (+) |
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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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Term
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Definition
| the second decimal place value (0.01) |
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Term
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Definition
| the third decimal place value (0.001) |
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Term
| what is the mean and how do you find it? |
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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 |
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Term
| what is the median and how do you find it? |
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Definition
| the number in the middle of a list of numbers (they must be sorted from least to greatest before you find the median) |
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Term
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Definition
| the most common number in a list of numbers |
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Term
| what is the variation and how do you find it? |
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Definition
| the difference between the largest and smallest numbers in a list (also called the range) |
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Term
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Definition
| a prefix that means 1000 times bigger |
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Term
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Definition
| a prefix that means 100 times smaller |
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Term
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Definition
| a prefix that means 1000 times smaller |
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Term
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Definition
| a unit for measuring mass (pennies up to books or fruit) |
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Term
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Definition
| a unit for measuring mass (large books/large fruits and up) |
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Term
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Definition
| a unit for measuring mass (items smaller than pennies) |
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Definition
| a unit for measuring volume (anything smaller than a water bottle) |
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Term
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Definition
| a unit for measuring volume (anything bigger than a water bottle) |
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Term
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Definition
| a unit for measuring length (anything longer than an adult but smaller than a mile) |
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Term
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Definition
| a unit for measuring length (comparable to miles) |
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Term
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Definition
| a unit for measuring length (bigger than 1 or 2 inches and smaller than an adult) |
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Term
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Definition
| a unit for measuring length (anything smaller than 1 or 2 inches) |
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Term
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Definition
| a tool used to list all possible outcomes in a probability experiment |
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Term
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Definition
| the likelihood of an outcome (can be expressed as a fraction or as words like likely) |
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Term
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Definition
| a triangle with 3 congruent sides |
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Term
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Definition
| a triangle with 2 congruent sides and 1 side thats different |
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Term
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Definition
| a triangle with no congruent sides |
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Term
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Definition
| a triangle with one right angle |
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Term
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Definition
| a triangle with one obtuse angle |
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Term
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Definition
| a triangle with three acute angles |
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Term
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Definition
| the distance around a circle (about 3 times larger than diameter) |
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Term
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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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Term
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Definition
| a line that extends from the center of a circle to the outside edge |
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Term
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Definition
| the space inside of a 2D shape |
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Term
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Definition
| the distance around a shape |
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Definition
| the space inside a 3D shape |
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Definition
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Definition
(length x width) ÷ 2
[remember to divide by 2 because a right triangle is half of a rectangle] |
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Term
| how do you find the perimeter? |
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Definition
| add all the sides together |
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Term
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Definition
| a letter that stands for an unknown amount in a number sentence |
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Term
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Definition
| an equation or expression with a variable in it |
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Term
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Definition
| a number sentence with an equal sign |
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Term
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Definition
| a number sentence without an equal sign |
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Term
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Definition
| PEMDAS (parenthesis, exponents, multiplication or division, addition or subtraction) |
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Term
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Definition
| the first decimal place value (0.1) |
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Term
| volume of a rectangular prism |
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Definition
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Term
| Should you line up decimals when doing addition and subtraction? |
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Definition
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Term
| Do you line up decimals when you multiply? |
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Definition
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Term
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Definition
| the difference between the highest and lowest number in a set (synonym: variation) |
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Term
| How do you find the mean? |
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Definition
| Add all the numbers then divide by how many numbers there are. |
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Term
| How do you find the median? |
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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) |
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Term
| How do you find the mode? |
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Definition
| Look for the number that appears the most. |
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Term
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Definition
| A synonym for mean; this is the amount one person gets when everyone shares their total equally with everyone else. |
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Term
| What is 1/2 as a decimal? |
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Definition
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Term
| What is 1/4 as a decimal? |
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Definition
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Term
| What is 3/4 as a decimal? |
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Definition
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Term
| What is 1/5 as a decimal? |
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Definition
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Term
| What is 3/5 as a decimal? |
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Definition
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Term
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Definition
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Term
| What is 3/8 as a decimal? |
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Definition
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Term
| What is 5/8 as a decimal? |
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Definition
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Term
| What is 7/8 as a decimal? |
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Definition
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Term
| What should you create to help you on probability questions? |
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Definition
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Term
| How do you show your work for adding and subtracting fractions? |
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Definition
| A fraction T-chart or Whole-Fraction (W-F) chart. |
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Term
| How do you show your work for solving Order of Operations expressions? |
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Definition
| PEMDAS Pyramid (or pizza, or pie, or whatever you want to call it) |
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Term
| How can you show multiplication with a number and a variable? |
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Definition
| Put them right next to each other (like 5 times n could be shown as 5n). |
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Term
What does it mean if a number is right next to parenthesis?
Example: 7(8+5) |
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Definition
| It means multiply that number with whatever is inside the parenthesis. |
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Term
| What does the line in the middle of a fraction really mean? |
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Definition
| It means "divided by". Every fraction is actually a division problem. |
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Term
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Definition
| A number with only two factors |
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Term
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Definition
| A number with more than two factors |
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Term
| This number is neither prime nor composite |
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Definition
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Term
| What is the strategy to identify a prime or composite number (this works up to 100)? |
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Definition
4-question 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. |
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Term
| What should you do to help you on computation questions? |
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Definition
| Estimate first! Estimation will help you see if your answer is reasonable. |
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Term
| How do you check your work on computation questions? |
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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. |
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Term
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Definition
| an angle less than 90 degrees |
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Term
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Definition
| an angle equal to 90 degrees |
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Term
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Definition
| an angle more than 90 degrees |
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Term
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Definition
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Term
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Definition
| a triangle with three acute angles |
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Term
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Definition
| a triangle with one obtuse angle |
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Term
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Definition
| a triangle with one right angle |
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Term
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Definition
| a triangle where no sides are congruent |
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Term
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Definition
| a triangle with three congruent sides |
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Term
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Definition
| a triangle with two congruent sides and one side that's different |
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Term
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Definition
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Term
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Definition
By sides: Equilateral
By angles: Acute |
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Term
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Definition
By sides: Isosceles
By angles: Obtuse |
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Term
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Definition
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Term
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Definition
By sides: Scalene
By angles: Right |
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Term
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Definition
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Term
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Definition
| The distance around a circle. |
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Term
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Definition
| A line that touches the outside edge of a circle at 2 points. |
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Term
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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. |
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Term
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Definition
| A line that extends from the center of a circle to the outside edge. |
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Term
| How are the circumference and diameter related? |
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Definition
| The circumference is about 3 times larger than the diameter. |
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Term
| How are the diameter and radius related? |
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Definition
| The diameter is twice the size of the radius; the radius is half the size of the diameter. |
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Term
| How are the radius and circumference related? |
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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. |
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Term
| What is 1/20 as a decimal? |
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Definition
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Term
| What is 19/20 as a decimal? |
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Definition
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Term
| What is 1/25 as a decimal? |
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Definition
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Term
| What is 24/25 as a decimal? |
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Definition
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Term
| What is 1/50 as a decimal? |
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Definition
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Term
| Translation (a geometric transformation) |
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Definition
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Term
| Rotation (a geometric transformation) |
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Definition
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Term
| Reflection (a geometric transformation) |
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Definition
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Term
| What's the sum of the angles in a triangle? |
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Definition
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Term
| What's the fundamental counting principle? |
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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. |
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