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






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






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






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






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






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






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






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






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






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






11. The set of all possible outcomes is _____________.






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






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






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






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






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






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






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






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






20. 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.






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






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






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






24. ______________ 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.






25. The symbol < is read as ________ .






26. The symbol ≤ is read as __________ .






27. The symbol ≥ is read as ______________.






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






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






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






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 ratio that compares a number to 100.






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






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






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






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






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






38. The symbol > is read as _________.






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






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






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






42. 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.






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






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






45. 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.






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






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






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






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






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