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






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






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






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






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






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






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






8. 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.






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






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






11. The symbol < is read as ________ .






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






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






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






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






16. 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.






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






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






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






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






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






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






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






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. The symbol ≤ is read as __________ .






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






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






28. The symbol > is read as _________.






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






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






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






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






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






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






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






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






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






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






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






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






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






42. The symbol ______ means percent.






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






44. The symbol ≥ is read as ______________.






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






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






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






48. 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.






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






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