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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 comparison of two numbers with different units of measure.






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






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






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






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






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






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






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






9. 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).






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






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






12. 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.






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






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






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






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






17. The set of all possible outcomes is _____________.






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






19. 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.






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






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






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






23. The symbol ≤ is read as __________ .






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






25. The symbol < is read as ________ .






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






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






28. ______________ 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.






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






30. To add ____________ with common denominators - write the sum of the numerators over the common denominators. Then add the whole numbers.






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






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






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






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






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






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






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






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






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






40. 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.






41. 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.






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






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






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






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






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






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






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






49. The symbol > is read as _________.






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