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






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






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






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






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






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






7. Use number lines to ________ two decimals.






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






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






10. 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.






11. The set of all possible outcomes is _____________.






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






13. 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.






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






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






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






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






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






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






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






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






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






23. The symbol ______ means percent.






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






25. 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.






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






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






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






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






30. The symbol > is read as _________.






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






32. The symbol ≥ is read as ______________.






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






34. The symbol < is read as ________ .






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






36. 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.






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






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






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






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






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






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






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






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






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






46. 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.






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






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






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






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