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. 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.






2. Use number lines to ________ two decimals.






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






4. 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.






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






6. The symbol ≥ is read as ______________.






7. 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.






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






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






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






11. ______________ 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






27. The symbol < is read as ________ .






28. The set of all possible outcomes is _____________.






29. The symbol ≤ is read as __________ .






30. 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.






31. 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.






32. 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.






33. 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).






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






50. The symbol > is read as _________.