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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 symbol < is read as ________ .






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






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






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






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






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






7. ______________ 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.






8. The symbol > is read as _________.






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






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






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






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






13. 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.






14. 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.






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






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






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






18. 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.






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






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






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






22. Use number lines to ________ two decimals.






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






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






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






26. 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.






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






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






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






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






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






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






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






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






35. The symbol ≤ is read as __________ .






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






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






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






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






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






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






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






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






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






45. The symbol ______ means percent.






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






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






48. The set of all possible outcomes is _____________.






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






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