Test your basic knowledge |

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






2. The symbol > is read as _________.






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






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. The opposite of a positive integer is a ________ .






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






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






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






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






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






11. 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.






12. ______________ 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.






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






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






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






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






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






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






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






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






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






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






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






24. 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.






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






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






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






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






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






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






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






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






35. The symbol < is read as ________ .






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






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






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






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






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






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






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






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






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






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






46. The symbol ≥ is read as ______________.






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






48. The set of all possible outcomes is _____________.






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






50. Use number lines to ________ two decimals.