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






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






3. The symbol < is read as ________ .






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






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






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






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






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






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






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






11. 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.






12. 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.






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






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






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






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






17. Use number lines to ________ two decimals.






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






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






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






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






22. The symbol > is read as _________.






23. 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.






24. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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






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






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






35. 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.






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






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






38. 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.






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






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






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






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






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






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






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






46. 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.






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






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






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






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