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






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






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






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






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






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






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






8. The symbol ______ means percent.






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. The line or the fold is called the __________ .






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






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






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






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






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






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






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






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






19. 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).






20. 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.






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






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






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






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






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






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






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






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






29. The symbol > is read as _________.






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






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






32. 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.






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






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






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






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






37. Use number lines to ________ two decimals.






38. The symbol < is read as ________ .






39. 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.






40. The symbol ≤ is read as __________ .






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






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






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






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






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






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






47. The symbol ≥ is read as ______________.






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






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






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