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






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






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






4. The set of all possible outcomes is _____________.






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






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






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






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






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






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






11. The symbol ≥ is read as ______________.






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






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






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






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






16. The symbol > is read as _________.






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






18. The symbol < is read as ________ .






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






20. 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).






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






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






23. The symbol ≤ is read as __________ .






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






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






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






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






28. The symbol ______ means percent.






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






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






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






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






33. Use number lines to ________ two decimals.






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






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






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






37. 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.






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






39. 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.






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






41. ______________ 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.






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






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






44. 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.






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






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






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






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






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






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