Test your basic knowledge |

Important Math Facts

Subject : math
  • 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. Use number lines to ________ two decimals.

2. 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.

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

4. The symbol ______ means percent.

5. The set of all possible outcomes is _____________.

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

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

8. 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.

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

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

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

12. 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.

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

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

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

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

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

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

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

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

21. The symbol > is read as _________.

22. The symbol ≤ is read as __________ .

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

45. 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.

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

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

48. 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.

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

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