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






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






3. The symbol ≤ is read as __________ .






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






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






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






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






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






9. The symbol < is read as ________ .






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






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






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






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






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






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






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






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






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






19. 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.






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






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






22. The symbol > is read as _________.






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






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






25. 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.






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






27. The symbol ≥ is read as ______________.






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






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






30. 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.






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






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






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






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






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






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






37. The symbol ______ means percent.






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






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






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






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






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






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






44. The set of all possible outcomes is _____________.






45. Use number lines to ________ two decimals.






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






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






48. 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.






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






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