Test your basic knowledge |

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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






17. Make a __________ of an integer by using its placement on the number line.






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






19. Use number lines to ________ two decimals.






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






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






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






23. In a power - the number of times the base is used as a factor is the ________ . In 5³ - the exponent is 3.






24. _________ - _________ - and_______may be written by first writing each one as a fraction with a denominator of 100.






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






26. 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.






27. In a__________ - an object flips over a line without changing its size or shape.






28. 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.






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






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






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






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






33. Both addition and multiplication are _________ . This means that order doesnft change the sum or product.






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






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






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






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






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






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






40. The symbol > is read as _________.






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






42. ______________ 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.






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






44. The symbol ______ means percent.






45. The symbol < is read as ________ .






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






47. Instead of writing large numbers with all the zeros - you can use _________ . For example - 4 -250 -000 -000 = 4.25 x 10⁹.






48. The symbol ≤ is read as __________ .






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






50. A _______ is a ratio that compares a number to 100.