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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 transformation that turns a line or shape around a fixed point.






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






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






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






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






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






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






8. 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.






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






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






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






12. The symbol ≤ is read as __________ .






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






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






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






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






17. The symbol < is read as ________ .






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






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






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






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






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






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






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






25. ______________ 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.






26. Use number lines to ________ two decimals.






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






28. 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.






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






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






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






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






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






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






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






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






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






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






39. 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).






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






41. The symbol ______ means percent.






42. 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.






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






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






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






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






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






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






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