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






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






3. ______________ 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.






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






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






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






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






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






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






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






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






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. 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.






14. 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.






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






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






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






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






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






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






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






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






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






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






25. The symbol < is read as ________ .






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






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






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 ______________ 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.






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






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






34. The symbol > is read as _________.






35. 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.






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






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






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






39. 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.






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






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






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






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






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






45. Use number lines to ________ two decimals.






46. The set of all possible outcomes is _____________.






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






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






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






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