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






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






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






5. 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.






6. The symbol < is read as ________ .






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






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






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






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






11. Use number lines to ________ two decimals.






12. The symbol ≤ is read as __________ .






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






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






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






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






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






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






19. ______________ 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.






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






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






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






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






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






25. The symbol > is read as _________.






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






27. The set of all possible outcomes is _____________.






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






29. 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).






30. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






44. 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.






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






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






47. 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.






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






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