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






2. The symbol ≤ is read as __________ .






3. 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.






4. A _______ is a comparison of two numbers with different units of measure.






5. Use number lines to ________ two decimals.






6. A _________ has six rectangular faces. To find the surface area - find the sum of the areas of the six faces.






7. 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.






8. 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.






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






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






11. To express a ______ as a _______ - rewrite the percent as a fraction with a denominator of 100 - and then express the fraction as a decimal.






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






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






14. The symbol < is read as ________ .






15. To ______________ - if the denominators are unlike - write equivalent fractions with a common denominator. Subtract the fractions first - and rename if necessary. Then subtract the whole numbers. Simplify if possible.






16. To _________ - write the mixed numbers as improper fractions. Replace the divisor with its reciprocal and multiply.






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






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






19. The symbol ≥ is read as ______________.






20. In a power - the number used as a factor is the base. In 10³ - the ________ is 10. That is - 10³ = 10 X 10 X 10.






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






22. The symbol > is read as _________.






23. The set of ________ consists of the positive whole numbers - zero - and the opposites of the positive whole numbers.






24. The ________ of an angle is the common endpoint of the rays forming the angle.






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






26. A ___________ is a transformation that turns a line or shape around a fixed point.






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






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






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






30. The _________ of a circle is twice the length of the radius.






31. To _____________ - express the mixed numbers as improper fractions - multiply - and simplify the results.






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






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






34. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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






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






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






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






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






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






48. To add mixed numbers with unlike denominators - write equivalent fractions with a ___________ . Add the whole numbers and add the fractions.






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






50. Prime factorization can be written using ________ . For example - 2 x 2 x 3 = 2² x 3