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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 _________ 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).






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






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






4. 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.






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






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






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






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






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






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






11. The set of all possible outcomes is _____________.






12. The symbol ≤ is read as __________ .






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






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






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






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






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






18. 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.






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






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






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






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






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






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






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






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






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






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






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






30. 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.






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






33. The symbol < is read as ________ .






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






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






36. ______________ 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.






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






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






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






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






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






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






43. 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.






44. The symbol ______ means percent.






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






46. The symbol ≥ is read as ______________.






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






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






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






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