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. Use number lines to ________ two decimals.






2. 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.






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






4. The symbol ______ means percent.






5. The set of all possible outcomes is _____________.






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






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






8. 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.






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






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






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






12. 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.






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






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






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






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






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






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






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






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






21. The symbol > is read as _________.






22. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






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






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






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






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






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






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






36. A _________ has six rectangular faces. To find the surface area - find the sum of the areas of the six faces.






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






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






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






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






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






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






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






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






45. 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.






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






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






48. 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.






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






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