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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. The line or the fold is called the __________ .






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






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






4. 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.






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






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






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






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






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






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






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






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






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






14. 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.






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






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






17. 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.






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






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






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






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






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






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






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






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






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






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






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






29. The set of all possible outcomes is _____________.






30. The symbol > is read as _________.






31. The symbol ≥ is read as ______________.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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. The symbol ≤ is read as __________ .






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