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






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






3. 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.






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






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






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






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






8. 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.






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






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






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






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






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






14. 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.






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






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






17. The symbol ≥ is read as ______________.






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






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






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






21. Use number lines to ________ two decimals.






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






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






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






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






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






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






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






29. The symbol < is read as ________ .






30. The symbol ______ means percent.






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






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






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






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






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






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






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






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






39. ______________ 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.






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






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






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






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






44. 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.






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






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






47. The set of all possible outcomes is _____________.






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






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






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