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






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






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






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






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






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






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






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






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






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






11. The symbol > is read as _________.






12. ______________ 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.






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






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






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






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






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






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






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






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






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






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






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






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






26. Use number lines to ________ two decimals.






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






28. The symbol < is read as ________ .






29. 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.






30. The set of all possible outcomes is _____________.






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






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






33. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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