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Important Math Facts

Subject : math
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A _____________ is a system used to condense a set of data where the greatest place value of the data forms the stem and next greatest place value forms the leaves.






2. A figure that can be rotated 180° about a point so that it matches the original figure has ______ .






3. Two angles are ___________ if the sum of their measures is 180°.






4. An ___________ is a combination of numbers - variables - and operations.






5. To express a ______ as ________a - express the percent as a fraction with a denominator of 100 - then simplify.






6. A ___________ is a proportion with one fraction with a denominator of 1.






7. Together - the x coordinate and y coordinate form an ___________.






8. The surface area of a __________ is the sum of the areas of two circles and a rectangle.






9. The symbol < is read as ________ .






10. The set of all possible outcomes is _____________.






11. A diagram used to show the total number of possible outcomes in a probability experiment is called a _____________.






12. The _________ states that multiplying a sum by a number is the same as multiplying each addend by that number and then adding the two products. For example - 3(8 + 2) = (3 x 8) + (3 x 2).






13. The symbol > is read as _________.






14. A _________ is a randomly-selected group that is used to represent a whole population.






15. The symbol ≥ is read as ______________.






16. The ______________ are the numbers of pieces of data that can represent the whole set of data. These common measures of central tendency are mean - median - and mode.






17. When you add or subtract _________ that have the same or like denominators - you only add or subtract the numerators. The denominator stays the same.






18. The _________ of an integer is the distance of the integer from zero.






19. The rules to follow when more than one operation is used are called the ___________.






20. A _________ is an equation that shows two ratios are equivalent.






21. The ___________ of a circle is equal to π times its diameter or π times twice its radius. C = π d or C = 2 π r.






22. A _______ is the comparison of two numbers by division.






23. The symbol ______ means percent.






24. ______________ are two events in which either one or the other must take place - but they cannot both happen at the same time. The sum of their probabilities is one.






25. An _________ is a mathematical sentence that contains < - > - ≠- ≤ - or ≥ .






26. In a __________ - an object slides from one position to another without changing its size or shape.






27. Two angles are ___________ if the sum of their measures is 90°.






28. To ___________ - multiply the numerators and then multiply the denominators. Write the product in lowest terms.






29. To ____________ - replace the divisor with its reciprocal and then multiply to get your answer.






30. To __________ an algebraic expression means to substitute a value for the variables and apply the rules for order of operation.






31. Use number lines to ________ two decimals.






32. The line or the fold is called the __________ .






33. If a figure can be divided in half by a line so that the two halves match each other - the figure is __________ .






34. The ________ is used to represent the ratio of distance on the map to the actual distance.






35. An ________ is a mathematical sentence that contains the equal sign.






36. The opposite of a positive integer is a ________ .






37. Use __________ to compare two decimals - using the order symbols.






38. ___________ is a number that can be written using an exponent. For example - 3² means three to the second power.






39. A _________ is a symbol - usually a letter - used to represent a number.






40. The symbol ≤ is read as __________ .






41. The __________ of a solid is the total area of its exterior surfaces.






42. A _________ is a special kind of bar graph that shows frequency of data.






43. Both addition and multiplication are __________ . This means that grouping addends or factors will not change the sum or product.






44. The ____________ of a circle is always a little more than three times the diameter.






45. A ___________is for organizing a set of data that shows the number of times each item or number appears.






46. Similar figures have the same shape but different sizes. The symbol ~ means _________ .






47. When two or more numbers are multiplied - each number is called a _________ .






48. An approximation of pi is 3.14 - or _______ .






49. To add or subtract fractions with unlike denominators - you need to change the fractions to equivalent fractions with ____________ before you find the sum or difference.






50. _________ integers are the same distance from zero in opposite directions on the number line.