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






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






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






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






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






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






7. The symbol ______ means percent.






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






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






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






11. Use number lines to ________ two decimals.






12. 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.






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






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






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






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






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






18. 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).






19. The symbol < is read as ________ .






20. 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.






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






22. 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.






23. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






46. 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.






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






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






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






50. The symbol > is read as _________.