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. The symbol ≤ is read as __________ .






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






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






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






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






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






7. 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.






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






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






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






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






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






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






14. The symbol < is read as ________ .






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






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






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






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






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






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






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






22. The symbol > is read as _________.






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






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






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






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






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






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






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






30. 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.






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






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






33. The _________ states that multiplying a sum by a number is the same as multiplying each addend by that number and then adding the two products. For example - 3(8 + 2) = (3 x 8) + (3 x 2).






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






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






36. 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.






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






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






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






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






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






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






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






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






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






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






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






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






49. 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.






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