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4th Grade 4th SW Rev
Review
| Term | Definition |
|---|---|
| Angles | the amount between two rays that have same endpoint(vertex). Measured in degrees |
| Right Angle | An angle measuring 90°. |
| Acute Angle | An angle measuring less than 90° |
| Obtuse Angle | An angle measuring more than 90° |
| Degrees | a unit for measuring the size of an angle, symbol º. |
| Protractor | an instrument used to measure angles in degrees. |
| Parallel | lines that are same distance apart and never touching |
| Perpendicular | Intersecting lines that form right angles. |
| Area | The size of a surface takes up, measured in square units |
| Line Segment | A section of a line, with two endpoints |
| Intersect | To cross over one another. |
| Rectangle | a quadrilateral with two pairs of opposite equal parallel sides, four right angles . |
| Value | the numerical worth or amount. |
| Tenth | one part of 10 equal parts |
| Hundredth | one part of 100 equal parts |
| Number Line | a line marked with numbers which is useful as a visual aid for calculating and showing relationships between values. |
| Mixed Number | a number written as a whole number with a fraction |
| Improper Fraction | •a fraction equivalent to or larger than one whole. • the numerator is larger than or equal to the denominator. |
| Equation | a mathematical statement containing an equals sign, to show that two expressions are equal |
| Array | a set of objects or numbers arranged in rows and columns |
| Expression | each side of an equal sign |
| Strip Diagram | a rectangular model used to show numerical relationships. |
| Position | the comparison of where something is related to another object or its surroundings |
| Perimeter | distance around the outside of a shape |
| Frequency Table | a table used to organize data as an ordered list and their frequency. |
| Stem and Leaf Plot | a data display that shows groups of data arranged by place value. |
| Digit | A symbol used to make numerals. These are the digits 0, 1, 2, 3, 4, 5, 6 , 7, 8 , 9. |
| Comparison | To decide if a number is greater than, less than or equal to another or other numbers. (>,<,=) |
| Borrowing | The action of taking and using money from a lender under an agreement to pay it back later. |
| Fixed Expense | An expense that does not change from time to time . |
| Variable Expense | A cost that fluctuates(changes) directly with output changes |
| Lending | The process of loaning an amount of money given to someone for a period of time with a promise that it will be paid back. |
| Savings | A bank account that earns modestly good interest, along with the ability to withdraw money easily for modest fees. |
| Expenses | money needed to buy or do something; cost |
Created by:
jzschau
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