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. The symbol < is read as ________ .






2. The symbol > is read as _________.






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






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






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






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






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






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






9. 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.






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






11. The set of all possible outcomes is _____________.






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






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






14. The symbol ≤ is read as __________ .






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






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






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






18. ______________ 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.






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






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






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






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






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. The symbol ______ means percent.






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






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






28. 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.






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






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






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






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






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






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






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






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






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






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






39. 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.






40. Use number lines to ________ two decimals.






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






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






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






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






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






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






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






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






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






50. The symbol ≥ is read as ______________.