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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 special kind of bar graph that shows frequency of data.






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






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






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






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






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






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






8. In a power - the number used as a factor is the base. In 10³ - the ________ is 10. That is - 10³ = 10 X 10 X 10.






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






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






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






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






13. The symbol < is read as ________ .






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






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






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






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






18. 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.






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






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






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






23. 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.






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






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






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






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






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






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






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






31. The set of all possible outcomes is _____________.






32. 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).






33. The symbol ≤ is read as __________ .






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






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






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. The opposite of a positive integer is a ________ .






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






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






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






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






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






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






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






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






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






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






48. ______________ 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.






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






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