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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






23. 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.






24. Use number lines to ________ two decimals.






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






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






27. 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.






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






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






30. 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.






31. The symbol > is read as _________.






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






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






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






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






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






37. 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.






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






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






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






41. 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.






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






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. The symbol ≤ is read as __________ .






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






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






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






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






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






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