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






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






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






4. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






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






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






17. 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.






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






19. To add ____________ with common denominators - write the sum of the numerators over the common denominators. Then add the whole numbers.






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






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






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






23. The symbol ≤ is read as __________ .






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






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






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






27. Use number lines to ________ two decimals.






28. The symbol < is read as ________ .






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






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






31. 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).






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






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






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






35. The symbol > is read as _________.






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






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






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






39. 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.






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






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






42. The symbol ______ means percent.






43. ______________ 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.






44. 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.






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






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






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






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






49. 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.






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