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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. The line or the fold is called the __________ .






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






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






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






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






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






7. 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.






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






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






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






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






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






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






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






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






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






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






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






19. The symbol ______ means percent.






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






21. Use number lines to ________ two decimals.






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






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






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






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






26. The symbol ≥ is read as ______________.






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






28. The symbol > is read as _________.






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






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






31. 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.






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






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






34. The symbol < is read as ________ .






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






36. The symbol ≤ is read as __________ .






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






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






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






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






41. ______________ 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.






42. 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.






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






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






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






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






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






48. The set of all possible outcomes is _____________.






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






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