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






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






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






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






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






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






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






8. The set of all possible outcomes is _____________.






9. 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.






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






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






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






14. 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.






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






16. 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.






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






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






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






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






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






22. A _______ is a ratio that compares a number to 100.






23. The symbol < is read as ________ .






24. The symbol ≥ is read as ______________.






25. The symbol ______ means percent.






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






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






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






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






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






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






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






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






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






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






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






37. 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.






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






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






40. The symbol > is read as _________.






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






42. The symbol ≤ is read as __________ .






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






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






45. 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).






46. 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.






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






48. ______________ 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.






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






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